Journal articles: 'Mechanical connection'

1

Song, Guo Hua, Dong Wei Wang, and Bing Kang Liu. "Study on Seismic Behavior of Vertical Connection in Prefabricated Reinforced Concrete Structures." Advanced Materials Research 250-253 (May 2011): 1385–94. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.1385.

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The paper attempts to research the seismic behavior and mechanical mechanisms under repeated low-cycle loading of vertical connections in prefabricated reinforced concrete structures. Eighteen specimens were designed and tested, the test process and the mechanical mechanisms are studied, the seismic behavior of connections is analyzed, and the shear resistance formulas are proposed. The theoretical values based on proposed formulas are good agreement with test results. Under repeated loading, the shear resistance decreases, the connection ductility increases with connecting bar, but decreases with connection width. However, all the connections fail crisply with poor ductility. At sudden-cracking, the shear resistance increases with connecting bar, but changes nonlinearly with connection width. The resistance is composed of attributions of mechanism of diagonal-compressive column (MDCC) and mechanism of compressive friction action (MCFA). After sudden-cracking, the shear resistance is provided by weakened MDCC and dowel action of connecting bars (DACB). It increases with connecting bar and connection width.

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2

Manesse, Jean-Pierre, and Jacques Angibaud. "Mechanical connection means." Marine Pollution Bulletin 17, no. 8 (August 1986): iv. http://dx.doi.org/10.1016/0025-326x(86)90267-5.

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Liu, Yan, Jing Chen, Hongwei Ma, Meng Gong, and Linfeng Zhang. "Mechanical performance of three types of connections used in orthogonal ribbed beams made of poplar laminated veneer lumber." BioResources 17, no. 3 (June 14, 2022): 4638–55. http://dx.doi.org/10.15376/biores.17.3.4638-4655.

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This study elucidated the mechanical performance of different connections used in orthogonal ribbed beams made of poplar laminated veneer lumber (LVL). Three types of connections (namely, U-, T-, and L-shape) were fabricated and used to connect the second beam and the middle part of a main beam to form an orthogonal rib beam. A concentrated load was applied to the intersection between the main beam and the second beam. The results showed: (1) all three types of ribbed beam connection specimens showed good connecting performance and the ductile failure, including the pull-out of partial self-tapping screws, crushing of LVL at the end of the ribbed beam, and connection failure; (2) the variation of load capacity of JD2-type specimens was approximately 3.2%, which was smaller than that of the JD1- and JD3-type specimens, slightly less than 10%; (3) the ultimate bearing capacity of a connection specimen was proportional to the number of self-tapping screws; and (4) the mechanical performance of the U-shaped connection specimens was worse than that of the L-and T-shaped connection specimens. The L-shaped connection was recommended due to its better mechanical performance, simpler configuration, and more convenient fabrication.

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Wang, Chun Gang, Xu Wang, Guo Chang Li, and Jin Guo Wu. "The Finite Element Analysis of Mechanical Behavior of New Connection." Advanced Materials Research 1065-1069 (December 2014): 1281–84. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1281.

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Purlin connections have important influence on the stiffness, bearing capacity and the purlin calculation methods. A new kind of purlin connection was put forward in this paper. The mechanical behavior of the new connection was studied by finite element analysis using software ANSYS. As can be seen from the simulation results, the new connection can enhance the stiffness of purlin, and effect of each new wave connection is better than the promotion of purlin stiffness in the vibration wave connection. New connection has a better promotion effect for small stiffness of purlin.

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Yamilev, Marat Z., Egor А. Tigulev, and Andrey А. Raspopov. "The assessment of the level of local strengthening of pipe steel welded connections." SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATION 10, no. 3 (June 30, 2020): 252–62. http://dx.doi.org/10.28999/2541-9595-2020-10-3-252-262.

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The metal welding is accompanied by the formation of mechanically non-homogenous sections of welded connection. The pipeline welded connections also have sections, which are different in structure, chemical composition and mechanical properties. The mechanical inhomogeneity affects the load bearing capacity of welded connection and the structure as a whole, which is necessary to take into consideration when performing calculation analysis. So far, the specialists have established the dependencies in assessment of welded connection strength with various types of heterogeneous sections. However, this phenomenon has received little attention in case of pipeline welded connections made of low carbon steels. The existing theoretical models do not reflect actual anisotropy of mechanical properties of the welded connections and weld adjacent zone. The present study considers the model of welded connections of K56 pipe steels with various strength characteristics of sections of welded seam and weld adjacent zone, without defects. The assessment of mechanical inhomogeneity influence on load bearing capacity of welded connections was performed by applying the finite-element modelling of its stress-strain state. The developed numerical model helps to determine and optimize the criteria of testing of full scale samples of pipe steel welded connections with regards to the implementation of local strengthening effect. The research results demonstrated that the degree of contact strengthening in welded connections with X-shape grooving is higher than in welded connections with V-shaped grooving by 8 % at similar relative thickness of soft interlayer. The suggested numerical model can be applied for detailed calculations of pipelines with regards to the mechanical inhomogeneity of its welded connections.

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Shi, Qingping, Xueyan Zhao, Bingquan Si, and Haiyu Zhang. "Experimental study on the nonlinear dynamic characteristics of a kind of hinged connection structure." Journal of Physics: Conference Series 2343, no. 1 (September 1, 2022): 012016. http://dx.doi.org/10.1088/1742-6596/2343/1/012016.

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The hinged connections are widely used in mechanical structures, such as the expandable structures and truss structures in spacecraft and the three-point hitch device in agricultural machinery. The hinged connections allow relative rotations between the connected members so that the positions of mechanical structures can be adjusted. Thus, the hinged connections are always subject to large and complex forces during working operation, and these will lead to complicated nonlinear vibrations which have a significant impact on the working performance and fatigue lifespan of the mechanical structures. Therefore, the nonlinear dynamics characteristics of the hinged connection are studied. Firstly, the experimental platform of a typical hinged connection is established according to the mechanical structure characteristics and loading features of the hinged connection structure. Then the vibration experiments of the hinged connection structure are carried out respectively under different working conditions. Finally, the effect of hinge clearances and excitation frequencies on the nonlinear dynamics of the hinge connection structure is studied by the vibration response of the hinge connection structure under different working conditions. The results of this study can provide a reference for the optimal design of the hinged connection structure.

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7

Qu, Chun-Xu, Yu-Wen Xu, Jin-He Gao, Wei-Hao Zhou, Bao-Zhu Zheng, and Peng Li. "Mechanical Performance Study of Beam–Column Connection with U-Shaped Steel Damper." Materials 15, no. 20 (October 12, 2022): 7085. http://dx.doi.org/10.3390/ma15207085.

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The article proposes the use of a semi-rigid energy-dissipation connection combined with a U-shaped metal damper to avoid brittle failure of rigid steel beam–column connections under seismic loading. The U-shaped metal damper connects the H-section column and the H-section beam to form a new energy-dissipation connection as an energy-dissipation member. Compared with the existing research, this connection has a stable energy-dissipation performance and great ductility. To clarify the mechanism of energy dissipation, mechanical models under two U-shaped damping deformation modes are established. The calculation formulas for the yield load and stiffness are derived for the corresponding deformation mode using the unit load method. Taking the T-shaped beam–column connection and the application of U-shaped steel damper in the beam–column connection as an example, the mechanical model of the connection is established and the calculation formulas for the yield load and stiffness are derived. At the same time, the connection is subjected to a quasi-static test under cyclic loading. The results show that the hysteretic curve of the test is complete and that the skeleton curve is accurate compared to the theory. The error range of the initial stiffness and yield load obtained by the test and the theoretical formula is kept within 20%, indicating that the theoretical formula is reasonable and feasible. In addition, the correctness of the finite element model is verified by establishing a finite element model and comparing it with the test. The mechanical responses of purely rigid connections and rigid semi-rigid composite connections are compared and analyzed using a multi-story and multi-span plane frame as an example. The results show that the model with semi-rigid connections, compared to the model with rigid connections, avoids the gradual loss of bearing capacity caused by the failure of the connection area of the second floor of the main structure and improves the seismic performance of the main structure.

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8

Yang, Rongqian, and Xuejun Zhou. "Analysis of the Mechanical Behavior of Bolted Beam-Column Connections with Different Structural Forms." Advances in Civil Engineering 2019 (March 3, 2019): 1–11. http://dx.doi.org/10.1155/2019/1967253.

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In order to study the mechanical behavior of bolted beam-column connections, the accuracy and applicability of the finite element model were firstly validated according to the published experiments on end-plate connections using ABAQUS. Then, in order to discuss the mechanical behavior of connections, three semirigid connections which are convenient for prefabricated construction, including top-and-seat angle connections with web and ear plate, extended end-plate connection, and T-stub connection, were examined using numerical simulation analysis to study and compare their capacity, hysteretic behavior, ductility, and degradation characteristics in detail. The results showed that the finite element models that were built could effectively simulate the load bearing behavior of bolted connections under both single-direction loading and cyclic loading. The three connections showed good load bearing capacity. The connectors significantly affected the energy dissipation capacity under load. The extended end-plate connection demonstrated the best performance in both mechanical behavior and manufacture and installation, so it would therefore be the preferred option.

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Fu, Yu Guang, Ming Yuan Wang, Hai Bo Ge, and Lu Li. "Experimental Study of Mechanical Properties of Bamboo’s Joints under Tension and Compression Load." Advanced Materials Research 450-451 (January 2012): 749–55. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.749.

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The sleeve-bolt connection and the groove-plate connection are two major forms of bamboo’s joints under tension and compression load, and the strength of these two connections is normally governed by the brittle failure mode of shearing-split. A new configuration of sleeve-cement bamboo joint is designed. Comparative loading tests were carried out to study the static tensile and compressive performances of the bamboo joints. It is found that the joint with sleeve-cement connection behaves more ductile under tension and possesses higher strength under compression than those with the sleeve-bolt and groove-plate connections. The sleeve-cement connection ensures effective transition of the axial load in the bamboo joint, and there are more to be optimized in its design.

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10

Wang, Yan, Xiu Li Liu, and You Sheng Yu. "The Mechanical Behavior Study on Reduced Beam Section and Widened Beam Section Connections of Steel Frames." Advanced Materials Research 163-167 (December 2010): 717–25. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.717.

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In the paper, finite element models are established by using numerical methods to study the mechanical behavior of these kinds of connections. By discussing the range of design parameter of reduced beam section connection and widened beam section connection, stress distribution of connections and the influence of design parameter on bearing capacity at elastic stage and plastic stage are studied. The FEM models of these two kinds of connections behaved good ductility behavior. The purpose of moving plastic hinge outward from the beam and column interface is realized. Stress concentration near welds at the end of beam is reduced significantly. The bearing capacity of widened beam section connection increase obviously due to expanding the local area of beam flanges at the end of beam, but that of reduced beam section connection decrease due to trimming beam flanges. After studies, the range of design parameter of reduced beam section connection and widened beam section connection are given in the paper, and comparing with FEMA-350 [14] of American. The suggestion parameters would be useful for seismic design of steel frames.

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11

Kennaway, Joel, Ali Rajabipour, Dongsheng Huang, Milad Bazli, Siyuan Tang, Junkai Wang, Hayden Zanker, and Fangming Su. "Connection Confinement of Bolted Fibre-Reinforced Polymer Bamboo Composite." Polymers 14, no. 10 (May 17, 2022): 2051. http://dx.doi.org/10.3390/polym14102051.

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Parallel strand bamboo is a composite material that demonstrates high strength and low variability compared to other timber materials. However, its use in bolted connections is limited by a tendency to fail in shear-out mode. One promising technique to prevent failure is the method of confinement, whereby the composite connection is confined laterally, inducing a compressive force perpendicular to the composite fibres, which increases the shear strength in the loading process. This paper investigates the confinement method and its effect on parallel strand bamboo connections’ strength and failure mechanisms through experimental tests and ANSYS simulation methods. It was discovered that bolted connection confinement reduces the propensity of shear-out failure by counteracting shear stresses. A comparison of graphical results revealed that confinement increased the ultimate tensile capacity of parallel strand bamboo bolted connections by up to 26%. Confinement also improved the consistency of the connection’s mechanical properties throughout the loading process. These findings assist in refining and optimising practical applications of parallel strand bamboo connections by using the method of connection confinement.

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12

Dong, Bingqing, Cong Lu, Jinlong Pan, Qifeng Shan, and Wanyun Yin. "Mechanical behavior of a novel precast beam-to-column connection with U-shaped bars and engineered cementitious composites." Advances in Structural Engineering 21, no. 13 (March 6, 2018): 1963–76. http://dx.doi.org/10.1177/1369433218761139.

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This article investigates a novel precast connection, with U-shaped bars extending from precast column to connect with the longitudinal bars in precast beams. To improve the seismic behavior of the connection, engineered cementitious composites, one kind of highly ductile concrete, were introduced into the core area of the connection, which also act as the cast-in-place material in the beam top and end. Prior to the test, finite element modeling was conducted to determine the proper splice length between U-shaped bars and beam reinforcements and also to evaluate the bonding performance of the proposed connection. The experimental program was then carried out on a monolithic connection, a precast connection with normal concrete as well as a precast connection with engineered cementitious composite, after which the seismic behaviors of the connections including their failure mode, hysteresis characteristic, stiffness degradation, ductility, and energy dissipation were analyzed. All three types of connections underwent typical flexural failure where the joint area remained intact. The negative carrying capacity, ductility, and energy dissipation were slightly lower for the connection with concrete, while the connection with engineered cementitious composite exhibited satisfactory behavior comparable to monolithic specimens. The latter connection with engineered cementitious composite is therefore suggested to be applied in highly seismic region.

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13

Li, Zheng Liang, Chun Tao Zhang, and Ru Heng Wang. "Experimental Study on Seismic Behavior of Cold-Formed Square Tube Beam-Column Connection with Welded Haunch." Advanced Materials Research 243-249 (May 2011): 677–81. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.677.

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The cold-formed thin-walled tube has been widely applied in high seismic fortification intensity region and post-seismic reconstruction area because of light quality, high strength and small deformation. But the connection mode and mechanical properties of beam-column connections still need further study. According to the "strong column and weak beam" seismic design principle and the thinking of control the position of plastic hinge, adding haunch slabs at the end of beam to reduce the number of repeated welding and avoid brittle fracture. Through the low cyclic loading experiment, four beam-column connections with welded haunch under different axial compression ratios have been studied, and connection’s hysteretic performance, energy-dissipating capacity, bearing capacity, rigidity and failure mode have been discussed. The result shows that: 1) the ultimate bearing capacity of connection with welded haunch is much great, and the energy dissipation capacity is very well, which can make this connection to absorb and consume great energy in earthquake. This connection can meet the need of seismic design very well. 2) The connection with welded haunch experiences much cycling time, has long yield platform after yield, has great cumulative energy-dissipating capacity and well ductility. 3) the final destruction of connection with welded haunch is caused by the beam’s local buckling. And the yield surface is almost located at the outside of connections. 4) The axial compression ratios has great effect on the hysteretic performance, bearing capacity and stiffness degradation for the connection with welded haunch.

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Li, Xiao, Jun Peng Li, and Bin Li. "Performance Analysis of Reinforced Dog-Bone Connection in Steel Frame." Applied Mechanics and Materials 501-504 (January 2014): 782–86. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.782.

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Based on the concept of strong connection and weak member, mechanical behaviors of the new reinforced dog-bone connections are compared. To new reinforced dog-bone connections, weakening flange at a certain distance away from the beam end and increasing weld area in the beam end. This improved connection can make the plastic hinge be far from the beam-column connection with stronger bearing capacity and better ductility. A nonlinear finite element analysis of the three forms of connections such as dog-bone connection, cover-plate reinforced dog-bone connection, and flange reinforced dog-bone connection conducted by ABAQUS. The results demonstrate that the energy dissipative and ductile capacity of the new reinforced dog-bone connection is strengthened effectively because of the plastic hinge forming far from the beam-column connection, and the carrying capacity of the new reinforced dog-bone connections are greater than dog-bone connection. By contrast, flange reinforced dog-bone connection is exceed to cover-plate reinforced dog-bone connection, for that the strengthened flange can resist the bending resistance better.

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Yan, Ya Jie, Hong Gang Lei, and Xue Yang. "Mechanical Properties on the Welded Connection of Pipe and Hollow Spheres Joints." Advanced Materials Research 189-193 (February 2011): 3452–57. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.3452.

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Taking pipe - hollow spherical node as the object, and using ANSYS finite element analysis software, established five kinds of finite element model to analyze the stress concentration at the weld connection of the different connections of steel structures - hollow ball under the uniaxial tension. Obtained this node’s stress concentration factor, stress distribution, by changing the hollow spherical diameter and wall thickness, pipe’s diameter and wall thickness, obtained the trend of the stress concentration factor under different control ball matches. Take static tests on typical structures of two specifications 6 hollow sphere nodes, get the measured stress concentration factor, and stress distribution of this node. Through comparative analysis of theoretical analysis and experimental results, show that the two rules are consistent. The research results can provide basis for improving the pipe - hollow spherical joints connecting structural.

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Milushev, Viktor, Azman Azka, and Martin Mittwollen. "Development of Mechanical Pipe-Connection Design for DEMO." Journal of Nuclear Engineering 4, no. 1 (January 11, 2023): 111–26. http://dx.doi.org/10.3390/jne4010008.

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Maintenance of the DEMO breeding blanket includes the removal and replacement of plasma-facing components. To access the breeding blanket, multiple coolant pipes need to be removed to allow access to the tokamak. As an option to reduce downtime and increase maintenance speed, the pipe-connection concept is developed to allow the removal of multiple pipes at the same time using a remotely operated mechanical connection. The remotely operated multi-pipe Mechanical Pipe Connection (MPC) needs to fulfil multiple requirements, such as high operating temperature and high external forces while at the same time maintaining an acceptable level of sealing between the high-pressure fluid and vacuum surroundings. In addition to the external conditions, the pipes of multiple sizes and fluids are connected in a manifold configuration. Although this will reduce the overall time required to operate the mechanical pipe connection when compared to multiple single-pipe connections, this will introduce additional forces and stresses due the interaction between pipe flow (e.g., simultaneous high- and low-temperature fluid pipes on the same manifold) through the manifold flange. The requirements and the boundary conditions of the multi-pipe MPC are taken into consideration during the design process of MPC. The design process is carried out to find the optimum form and size to allow the mechanical function of the pipe connection during the maintenance phase while withstanding the extreme operating conditions that the MPC will face the during operational phase. The resulting design will then be analyzed using numerical methods to assess the capability of the MPC designs.

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Ma, Wei, Yue Li, Kewei Ding, Baoquan Cheng, Jianhua Liu, Jianli Hao, and Vivian Wing Yan Tam. "Mechanical Properties of New Dry-Type Beam-Column Bolt Connection Joint." Sustainability 11, no. 12 (June 17, 2019): 3348. http://dx.doi.org/10.3390/su11123348.

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Beam–column assembled joint connections are crucial for realizing the industrialization of buildings through prefabrication. This paper focuses on the mechanical properties of a new dry-type high-strength bolt connection joint used in prefabricated buildings. The structural performance properties examined include bearing capacity, stiffness, failure mode, energy dissipation capacity, and deformation performance, all of which are tested through a pseudo static test involving low-cycle repeated loading. The test results show that the failure of the new dry-type beam–column connection joint is through plastic failure, with full hysteretic curve and good energy dissipation performance. The results provide a foundation for the analysis of assembled structural framework systems based on different forms of dry-type connection joints.

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Kuklík, Petr, Anna Kuklíková, and Anna Gregorová. "Timber-Concrete Composite Structures with Semi-Rigid Connections." Key Engineering Materials 677 (January 2016): 282–87. http://dx.doi.org/10.4028/www.scientific.net/kem.677.282.

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This paper deals with behavior of timber-concrete composite structures with mechanical connection systems. The paper is focused to two different connection systems: using dowel-type fasteners and using special surface connector. Behavior of dowel-type connection system is based on modification of Johansen ́s equations valid for timber to timber connections. Behavior of connection system with special surface connector is evaluated by experiments and numerical simulations.

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Fernández-Asián, Martínez-González, Torres-Lagares, Serrera-Figallo, and Gutiérrez-Pérez. "External Connection versus Internal Connection in Dental Implantology. A Mechanical in vitro Study." Metals 9, no. 10 (October 15, 2019): 1106. http://dx.doi.org/10.3390/met9101106.

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(1) Background: In today's dentistry, implantology has become a therapeutic resource of choice in certain clinical situations. The design of implants has evolved in several aspects since their inception. Dental implants were initially designed with an external hex connection, although due to force transmission and security in the adjustment of the prosthesis, later implants featured an internal hex connection. This study aims to analyse the mechanical properties of two types of implants (an internal connection and an external connection) from the same manufacturer and their different prosthetic components (union screw between implant and prosthetic abutment, and the abutment itself) when subjected to different types of load. (2) Materials and methods: Intraosseous dental implants of similar shape, design and size, although different in type of connection (external vs. internal), were studied. The specifications of the UNI EN ISO 14801 test standard were used, with all determinations being carried out three times. Finally, the dimensional characterisation of the samples analysed after the dynamic load study was carried out, and the values of both study groups were compared by means of the non-parametric Mann–Whitney U test to find statistically significant differences (p < 0.05). (3) Results: For the static characterisation test, we found between 610.9 N and 986.1 N for the external connection and between 1263.6 N and 1324 N for the internal connection (p = 0.011). All of the dynamic load tests were positive and there was no failure in any of the components studied. (4) Conclusions: After the analysis of the samples studied in vitro, satisfactory results were obtained, demonstrating that both connections can support considerable mechanical loads according to international standards (UNI EN ISO 14801).

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Zhang, Dongmei, Shiqiao Gao, and Xiao Xu. "A new computational method for threaded connection stiffness." Advances in Mechanical Engineering 8, no. 12 (December 2016): 168781401668265. http://dx.doi.org/10.1177/1687814016682653.

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For designing bolted connections in machinery applications, it is necessary to estimate the stiffness of the threaded connection. This work provides a new method for computing the stiffness of engaged screw in bolted connections according to the load distribution in screw thread. Finite element analysis is performed by building the three-dimensional model of threaded connection. A set of tensile tests are exerted to validate the accuracy of the suggested model of threaded connection. A good agreement is obtained when the analytical results are compared with finite element analysis results, experimental data, and Yamamoto method. Results reveal that the ultimate strength of thread connections is obviously lower than that of thread material. In addition, the results of calculation and finite element analysis indicated that increasing Young’s modulus of material and the engaged length or decreasing thread pitch could increase the stiffness of the thread portion of a bolt and nut.

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French, Catherine Wolfgram, Michael Hafner, and Viswanath Jayashankar. "Connections Between Precast Elements—Failure within Connection Region." Journal of Structural Engineering 115, no. 12 (December 1989): 3171–92. http://dx.doi.org/10.1061/(asce)0733-9445(1989)115:12(3171).

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French, Catherine Wolfgram, Olanrewaju Amu, and Charbel Tarzikhan. "Connections between Precast Elements—Failure Outside Connection Region." Journal of Structural Engineering 115, no. 2 (February 1989): 316–40. http://dx.doi.org/10.1061/(asce)0733-9445(1989)115:2(316).

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Chunyi, Cui, Zhao Jinfeng, Zhang Yannian, and Zuo Wenxin. "Experimental Analyses of Mechanical Performance of CFST Column to Assembled Steel H-Beam Connections." Open Mechanical Engineering Journal 8, no. 1 (September 16, 2014): 270–78. http://dx.doi.org/10.2174/1874155x01408010270.

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The mechanical performance of a new proposed type of cross-shaped connection with concrete-filled steel tubular (CFST) column and assembled steel H-beam was investigated. Cyclic loading tests on the cross-shaped connections are carried out by using MTS servo loading system. Comparative analyses are conducted based on the experimental results including hysteretic curves, skeleton curves and stiffness degradation curves as well as ductility coefficients of cyclic loading tests. Furthermore, effects of geometric parameters of ring-stiffened plate, axial compression ratio and backing plate on the deformation performance of cross-shaped connections are analyzed. The results show that the increase of width of ring plate and the shape change of ring plate from square to circle can both significantly improve the ductility and the hysteretic characteristics of connection. It is emphasized that the specimen with square ring plates is of better deformation performance but lower bearing capacity than the ones with circular ring plates. Besides, the backing plates always have positive effects on the hysteretic characteristics, ductility and energy dissipation of the CFST column connections. Conversely, the increase of axial compression ratio contributes negatively to both the bearing capacity and deformation performance of the connection specimens. It can be concluded that the presented cross-shaped connection is of good deformation performance relating to hysteretic characteristics, energy dissipation and ductility, which can provide reference towards engineering practice with potential perspective application.

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Zhou, Jian, Xudong Zhi, Feng Fan, Anliang Jiao, and Hongliang Qian. "Anchor Design of a Ring Joint Based on Reliability in a Precast Shear Wall Structure." Applied Sciences 9, no. 16 (August 15, 2019): 3361. http://dx.doi.org/10.3390/app9163361.

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Precast buildings have been widely used owing to its outstanding features. As these buildings consist of a combination of various components, the mechanical properties of the connections play a critical role in the overall performance of the structure, particularly the vertical connections in shear wall members. A new connection called ring joint is proposed for precast buildings, and test pieces were designed to analyze the anchor performance. The damage phenomena and test data were observed and recorded. The displacement, force, and strain were analyzed, and the results indicated that the anchor length was a key factor and the connection was safe and reliable under reasonable design. Numerical analysis was conducted to explore the mechanical mechanism, and a bearing capacity model was proposed combining the bond and dowel effects simultaneously. Anchor length was determined based on reliability analysis under various conditions, and other suggestions were proposed. All these could guarantee the mechanical properties of the connection, as well as safety and reliability, and promote the popularization and application.

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Peng, Han, Jinping Ou, Andreas Schellenberg, Frank Mckenna, and Stephen Mahin. "Seismic Behavior of Steel Moment Frames with Mechanical Hinge Beam-to-Column Connections." International Journal of Structural Stability and Dynamics 20, no. 06 (June 2020): 2040005. http://dx.doi.org/10.1142/s0219455420400052.

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This paper presents an investigation on the seismic behavior of steel moment frames with mechanical hinge beam-to-column connections. The connection uses a mechanical hinge to carry shear force and a pair of buckling-restrained steel plates bolted to the beam flange to transfer bending moment. The moment-rotation behavior of the connection was theoretically studied. A nonlinear numerical model for steel moment frames under strong earthquakes was developed and validated using a shaking table test of an 18-story steel moment frame at the E-Defense facility. Then, nonlinear static and time-history analyses were conducted to compare the seismic behavior of a conventional steel moment frame and three innovative steel frames equipped mechanical hinge connections in terms of roof displacement, base shear, inter-story drift ratio, and plastic hinge rotation.

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Sun, Wei Wei, and Feng Wei. "Numerical Investigation on Block Shear of Coped Beams with a Welded End Connection." Advanced Materials Research 163-167 (December 2010): 274–78. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.274.

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A numerical investigation on the block shear failure behavior of coped beams with double welded clip angle connection was conducted. Parametric study was conducted based on the validated finite element model. The parameters included the web block aspect ratio and the connection rotational stiffness. Based on the mechanical model of double angle connection, the pitch and the beam element length-to-angle thickness (L/t) ratio of the outstanding leg were selected as two importance parameters to consider the effect of the connection rotational stiffness. The results of parametric study show that the connection rotational stiffness has a great influence on the block shear capacity of coped beams with double welded clip angle connection. This is contributed to the fact that for the connections with a smaller connection rotational stiffness, the shear stresses of the shear area were much less than those of the connections with a larger connection rotational stiffness.

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Velikov, Stefan, Jonas Fabech, and Peter Heuberger. "Mechanical properties of a novel conical connection." Clinical Oral Implants Research 30, S19 (September 2019): 216. http://dx.doi.org/10.1111/clr.174_13509.

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Bullock, Whitney A., Frederick M. Pavalko, and Alexander G. Robling. "Osteocytes and mechanical loading: The Wnt connection." Orthodontics & Craniofacial Research 22, S1 (May 2019): 175–79. http://dx.doi.org/10.1111/ocr.12282.

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Sadowski, Tomasz, Przemysław Golewski, and Viorel Radoiu. "The Influence of Hybrid Material Parameters in Socked-pin Connection on the Value of Opening Force." Solid State Phenomena 254 (August 2016): 1–7. http://dx.doi.org/10.4028/www.scientific.net/ssp.254.1.

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Different types of techniques are used in joining of aircraft structures. The classical solutions are mechanical or bonding joining. A prospective alternative to the currently used connections (e.g. mechanical, adhesive and hybrid ones) is a socket - pin connection type. Generally, they are purely mechanical joints. Depending on the shape, they have different commercial names such as: Interlock, Snaplock, Snapfit Gridlock. The idea of these connections relies on the fact, that between the socket and the pin we need a suitable interference fit or specially formed clip to carry the load. The advantages of this type of connection of different structural parts is very fast assembly after pressing joined parts together. The use of socket - pin connection eliminates the presence of the human error and reduces production costs as an individual connection is made by CNC machine tools.The paper presents an analysis of the influence of a several technological problems concerning the socket and the pin manufacturing, on the value of force required for the joint connection and disconnection. A number of numerical simulations was made in ABAQUS program to examine the effect of such parameters as: the presence of interference fit, the use of spherical latches, the use of different rigidity in the shaft by making cuts with variable width and length, the use of different angles of inclination of the working part of the slot.

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Chemseddine Mehdi, Benyelles, Nadir Boumechra, Abdelghani Missoum, and Abdelhamid Bouchair. "Connection of a Steel Column Base Plate: Mechanical Behavior and Stiffening Effects." Civil Engineering Journal 8, no. 9 (September 1, 2022): 1764–86. http://dx.doi.org/10.28991/cej-2022-08-09-02.

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This paper investigates the behaviour of a steel column base connection subjected to a bending moment and compressive axial force. The behaviour of this connection is quite complex due to the number of components, such as the base plate, anchor rods, and stiffeners, to be considered in the numerical models. Moreover, a nonlinear three-dimensional finite element model was used to simulate the column base connection. This model can be used to analyze the moment-rotation relationship for the connection through the validation of numerical modeling with those given by the experimental test results and compared with the analytical model based on the components method of Eurocode 3. It was shown that in addition to the stiffness and bending resistance of the column base connection, other mechanical parameters, such as moment-rotation shape, stress distribution, and prying actions, can be significantly influenced by changing the properties of the components. It has been demonstrated that the anchor rod is not only affected by the axial force but also by a local moment that is not taken into consideration by the analytical model of Eurocode3. An extensive parametric study on stiffeners showed very interesting effects obtained by adding the welded stiffeners to the column base connections. Doi: 10.28991/CEJ-2022-08-09-02 Full Text: PDF

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Jong, Wan Hu, and Wan Kim Jae. "Advanced Design for The Bolted Clip-Angle Connection." Advanced Materials Research 716 (July 2013): 632–37. http://dx.doi.org/10.4028/www.scientific.net/amr.716.632.

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The main focus of this study is to investigate the clip-angle connections are described the section based on ideal limit states. The connection components are designed in accordance with the 2001 AISC-LRFD Specifications and the 2005 AISC Seismic Provisions. In the suggested clip-angle connection, the structural beam can be connected to the column using six high-strength bolts. The slippage on the shear faying surface contributes to increasing energy dissipated capacity in the connection behavior. The design of the clip-angle connection should include these mechanical characteristics. Therefore, this study presents new design methodology that can be applied to bolted clip-angle connections. Besides, step-by-step procedures for design will be treated herein.

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Qin, Yin Hui, Wen Ji Liu, Chao Yang Zhou, and Fu Hua Liu. "Mechanical Performance Analysis of Steel Beam-Concrete Wall Rigid Joint." Advanced Materials Research 639-640 (January 2013): 796–802. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.796.

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The beam-column joints play a key role in composite steel and concrete structures. In order to ensure a safe design of a new building and obtain optimum design, an experimental program consisting of the tests of three connections with different connection details under low-cyclic reversed loading, A series of mechanical performance such as the stress-strain relationship of steel beam web, beam flange, connecting plate, bracket web, bracket flange, distributing steel, concealed column in node core area are all analyzed, the results show that in the loading process, steel beam flange and web ,bracket flange produced yield deformation, but the bracket web, distributing steel, concealed column didn’t yield, so the steel beam flange and web, bracket flange must be strengthened in the design. The test results also show that the bracket can be regarded as canlitecver model in practical engineering.

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Antes, Iris, and Walter Thiel. "Adjusted Connection Atoms for Combined Quantum Mechanical and Molecular Mechanical Methods." Journal of Physical Chemistry A 103, no. 46 (November 1999): 9290–95. http://dx.doi.org/10.1021/jp991771w.

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Fiorino, Luigi, Vincenzo Macillo, and Raffaele Landolfo. "Experimental characterization of quick mechanical connecting systems for cold-formed steel structures." Advances in Structural Engineering 20, no. 7 (September 30, 2016): 1098–110. http://dx.doi.org/10.1177/1369433216671318.

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Among the several available building systems, constructions involving cold-formed steel profiles represent an efficient and reliable solution. These systems are very suitable to be used in pre-fabricated modular constructions, thanks to their lightness and possibility to automate the building process. In these systems, connections are usually made with self-tapping screws and play a key role both in fabrication, for reducing assembling times of modular units, and in structural behaviour, particularly for sheathing-braced solutions. In a framework of the European project ELISSA (Energy Efficient LIghtweight-Sustainable-SAfe-Steel Construction), which was devoted to the development and demonstration of cold-formed steel modular systems, an experimental campaign on quick connecting systems alternative to screws was carried out. This article shows the results of this experimental activity, consisting of monotonic and cyclic shear tests on connection systems. In particular, the tested specimens are clinching for steel-to-steel connections, whereas the fasteners used for panel-to-steel connections of walls and floors are ballistic nails. Tests results provided important information on the shear response of the connections with particular reference to the values of strength and stiffness, which are the main parameters for developing the seismic design of sheathed shear walls.

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Richter, Jessica, Anna Steenmann, Benjamin Schellscheidt, and Thomas Licht. "On-Chip Diffusion Bonding creates Stable Interconnections Usable at Temperatures over 300°C." International Symposium on Microelectronics 2019, no. 1 (October 1, 2019): 000530–34. http://dx.doi.org/10.4071/2380-4505-2019.1.000530.

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Abstract In this paper, we present a conceptual design of an on-chip solder stack to connect silicon devices faster and more reliable. Almost all electronic devices rely on solder layers to provide electrical, mechanical, and thermal connections between components. We improve the solder connection with industry-standard solder parameters of 300°C and some minutes of soldering time. An ideal solder connection is composed of intermetallic phases (IMPs) at the interfaces between device and solder, and substrate and solder. Typically, a thin region of Sn-based solder remains between the two IMP layers at the interfaces. IMPs of copper (Cu) and tin (Sn) are Cu6Sn5 and Cu3Sn. The formation of IMPs is decisive for a good mechanical connection because of their high melting point and mechanical stability. To achieve these requirements, we implement the solder stack as a transient liquid phase bonding (TLPB) system. To realize durable interconnections, we use the diffusion of a high-melting first component in a second component, which is liquid at solder process temperature. Ongoing diffusion leads to the formation of IMPs with a melting point above process temperature, resulting in a solidification of the connection at constant temperature. By this isothermal solidification, the solder connection becomes more durable against mechanical and thermal load and is usable at temperatures exceeding 300°C.

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Schaumann, Peter, and Thomas Kirsch. "Protected Steel and Composite Connections." Journal of Structural Fire Engineering 6, no. 1 (February 17, 2015): 41–48. http://dx.doi.org/10.1260/2040-2317.6.1.41.

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Actual developments in numerical simulations of the structural behaviour in fire situation are focussed on taking into consideration the interaction of all structural members in a global approach. Therefore it is necessary to simulate the load bearing behaviour of connections. With this motivation, the authors conducted experiments and thermal FE-simulations on two different connection types. In this paper, the accompanying mechanical FE-simulations of both investigated connection types will be described. The joints are defined as an end plate connection in a steel structure and a fin plate connection in a composite structure. Besides the validation of the numerical models, the results of the described investigations show that it is possible to activate a significant moment resistance within fin plate connections of composite structures. The main requirement for this activation is sufficient reinforcement strength.

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Pan, Jianrong, Shizhe Chen, Zhan Wang, and Hui Lu. "Initial rotational stiffness of minor-axis flush end-plate connections." Advances in Mechanical Engineering 10, no. 1 (January 2018): 168781401774539. http://dx.doi.org/10.1177/1687814017745397.

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The semi-rigid performance of minor-axis connections is important in the study of overall framework. Experiments were conducted on minor-axis flush end-plate connections under a monotonic load. Numerical simulations were carried out using the finite-element package ABAQUS and compared with the experimental results. The initial rotational stiffness of the connection was calculated using the equivalent T-stub in tension and EC3 component method, and the calculated veracity is discussed. The results show that under the action of a negative bending moment, the failure modes of the minor-axis flush end-plate connection are the out-of-plane bending deformation of the end-plate, local buckling of the bottom flange of the beam, and bending deformation of the bolts. The minor-axis flush end-plate connection is a typical semi-rigid connection. However, the deformations of the flush end-plate could not be accurately calculated using the equivalent T-stub in the tension of EC3 methods. The initial rotational stiffness calculated using the method was much larger than that obtained using the experiment and finite-element analysis. The equivalent simulation is not appropriate if the out-of-plane bending stiffness of the flush end-plate is not obtained accurately.

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Perreira, N. Duke, and Viet X. Nguyen. "A Connection Design Methodology for Automated Assembly and the Framing of Buildings." Journal of Manufacturing Science and Engineering 119, no. 1 (February 1, 1997): 37–49. http://dx.doi.org/10.1115/1.2836554.

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The erection of structural building frames, like that of other mechanical assemblies, involves the use of handling systems and connection technologies. A new “chamfered” connection, now known as the ATLSS Connection, has been developed to both facilitate the framing assembly task and provide adequate connection strength through the life of the building. This paper outlines the methodology and technical details used in developing the connection geometry from an insertion mechanics point of view. Although framing of buildings is explicitly addressed here, the approach is just as viable for other mechanical assemblies. Parameters associated with the connection geometry are defined and used in simulations of possible insertion trajectories. The insertion forces and moments are used to determine the fine details of the trajectory. It was found that the geometric parameters greatly affect the maximum allowable amount of initial misalignment between the beam and the two mating columns as well as the stiffness of the connection and its ability to be easily inserted.

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Matsui, Takayoshi, Yoshiyuki Matsushita, and Yukihiro Matsumoto. "Mechanical Behavior of GFRP Connection Using FRTP Rivets." Materials 14, no. 1 (December 22, 2020): 7. http://dx.doi.org/10.3390/ma14010007.

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In recent years, the application of fiber-reinforced plastics (FRPs) as structural members has been promoted. Metallic bolts and rivets are often used for the connection of FRP structures, but there are some problems caused by corrosion and stress concentration at the bearing position. Fiber-reinforced thermoplastics (FRTPs) have attracted attention in composite material fields because they can be remolded by heating and manufactured with excellent speed compared with thermosetting plastics. In this paper, we propose and evaluate the connection method using rivets produced of FRTPs for FRP members. It was confirmed through material tests that an FRTP rivet provides stable tensile, shear, and bending strength. Then, it was clarified that non-clearance connection could be achieved by the proposed connection method, so initial sliding was not observed, and connection strength linearly increased as the number of FRTP rivets increased through the double-lapped tensile shear tests. Furthermore, the joint strength of the beam using FRTP rivets could be calculated with high accuracy using the method for bolt joints in steel structures through a four-point beam bending test.

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Yin, Yong, Hong Zeng, and Xinjie Deng. "Research on Application Practice of Rebar Mechanical Connection." IOP Conference Series: Earth and Environmental Science 719, no. 2 (April 1, 2021): 022049. http://dx.doi.org/10.1088/1755-1315/719/2/022049.

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Roşca, Adrian, Nicolae Crăciunoiu, Sorin Dumitru, Nicolae Dumitru, and Dorian Cojocaru. "ARX development for SQL connection with Mechanical Desktop." IFAC Proceedings Volumes 45, no. 6 (May 2012): 1660–65. http://dx.doi.org/10.3182/20120523-3-ro-2023.00401.

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Li, Yunan, Xian Dong, Zhan Wang, Jiajun Li, and Ke Qin. "Research on Mechanical Properties of Angle Beam-column Joint with Gusset plate." E3S Web of Conferences 233 (2021): 03031. http://dx.doi.org/10.1051/e3sconf/202123303031.

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There is wide use of beam-column joint with gusset plate angle connection in engineering, however, the mechanical properties of these joints are still lack of complete theoretical and experimental research. This kind of joint is often simplified as an articulated connection or other types of connections in the design. In this paper, experimental study and finite element analysis are carried out to study the flexural behavior of the beam-column joint with gusset plate angle connection. The finite element analysis is used to analyze the differences between the beam-column joint with gusset plate and other joints. The moments-rotation curves and failure modes of the three kinds of beam-column joints were obtained by the static test which were carried out. A more reasonable design of beam-column joint with angle plate of gusset plate is put forward through the research of this paper: the deformation of the column flange is restricted after adding the stiffener, which can avoid the premature yield of the column flange and making the joint have good energy dissipation capacity.

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Gębura, Andrzej, and Aurelia Mach-Cygankiewicz. "Monitoring the Resistance of the Military Aircraft’s Fuselage." Research Works of Air Force Institute of Technology 39, no. 1 (December 1, 2016): 121–38. http://dx.doi.org/10.1515/afit-2016-0022.

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Abstract The article includes the description of the measurements of the military aircraft’s fuselage resistance, conducted for the purpose of identifying corroded spots in the fuselage’s mechanical connections’ structure. Considerations regarding the errors in measuring the single connections of the airframe’s mechanical element pairs and the entire structure of such connections in an actual aircraft are also presented. The paper includes the proposal of the superposition method for locating the mechanical connection pairs with improved electrical resistance. Simultaneously, for the purpose of forecasting the time of exploitation of the selected (most endangered) fuselage mechanical connections pairs, the article proposes conducting (in laboratory conditions) of the accelerated ageing process and converting the results to real-time using the Arrhenius method.

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Lei, Gaoyang, Guiyun Xu, Xiaoguang Zhang, and Baolai Tian. "Study on dynamic characteristics and compensation of wire rope tension based on oil pressure sensor." Advances in Mechanical Engineering 11, no. 3 (March 2019): 168781401983602. http://dx.doi.org/10.1177/1687814019836024.

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The oil pressure sensors are installed on the hydraulic connection device to monitor the tension of wire ropes. The change of acceleration during the operation process of hoist causes the tension change of each wire rope. It leads to impact on the cylinder of hydraulic connection device, enlarges the pressure loss, and makes the non-linear friction become more complex which affects the monitoring accuracy. In this article, the mathematical model of hydraulic connection device is established. To analyze the dynamic characteristics of the hydraulic connection system, the model of single hydraulic cylinder and hydraulic connection device is established and simulated by AMESim software. Then, the friction and pressure compensation in the working process of hydraulic connecting device are obtained by LuGre friction model and corresponding formulas of pressure loss. Finally, the monitoring system is designed and real-time compensation test is carried out. The results show that the compensation improves the accuracy of the real-time measurement system of wire rope tension.

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Fan, Zhen Zhong, Jiong Li Li, and Sha Sha Li. "Mechanism for Mechanical Properties of the A357 Connection Beam Casting from Solidification." Applied Mechanics and Materials 217-219 (November 2012): 1762–68. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1762.

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The overall distribution of mechanical properties of A357 aluminum alloy connection beam casting after solidification and T6 heat treatment was researched in this paper, through the mechanics performance test, metallographic microstructure observation, SEM and EDS scanning analysis of the fracture surface, the ensemble mechanical properties of connection beam casting was characterized. The results show that owing to the low cooling rate nearby the arc thick-walled department and the trasition region between the thick and thin-walled of the connection beam casting, leading to the morphology of the crystalline grains and silicon particles in this vicinity are thick. Some casting defects such as oxide inclusions located in the lateral stud district were caused by the strong erosion of high temperature melting liquid during the pouring process, resulting in the mechanical properties decreased significantly, casting defects were not eliminated in the T6 heat treatment process. Due to both the high cooling rate and the smooth pouring process among the thin-wall, forward stud and square box region of A357 aluminum connection beam casting, after the solid solution and limitation strengthening of T6 heat treatment, resulting in the overall mechanical properties were higher than other areas. The tensile strength has reached 360.96MPa, also with the yield strength and elongation respectively attained 297.95MPa and 8.82 %.

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Shekhorkina, Svitlana, Alexander Kesariisky, Mykola Makhinko, Tetiana Nikiforova, and Oleksandr Savytskyi. "Experimental Investigation and FEM Modeling of Glued Timber Connections with Slotted-In Steel Plates." Slovak Journal of Civil Engineering 27, no. 4 (December 1, 2019): 18–23. http://dx.doi.org/10.2478/sjce-2019-0027.

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Abstract The study is focused on the mechanical behavior and finite element method (FEM) modeling of glued timber dowel connections with slotted-in steel plates. Standard tests accompanied by a physical optics investigation method were used in order to obtain information about the mechanical properties and stress-strain behavior of glued timber dowel connections with slotted-in steel plates. As such a methodology provides information on the stress-strain state over the surface of a connection, it was used as a verification criterion for a 3D finite-element model. Small-scale glued timber dowel connections with slotted-in steel plates were tested in parallel-to-grain tension to investigate their load-carrying capacity and the load-slip performance of the connection. A three-dimensional finite-element model of the glued timber dowel connections with slotted-in steel plates was developed using existing FE software and verified using the holographic interferograms obtained during step-by-step loading as well as the test results.

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Cheng, Xing Hua, Tao Yang, and Zhong Dong Chang. "Thermoelastic Analysis of an Heterogeneous Orthotropic Nose Cap for a Hypersonic Vehicle." Advanced Materials Research 338 (September 2011): 325–34. http://dx.doi.org/10.4028/www.scientific.net/amr.338.325.

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Considering xz plane heterogeneous mechanical properties and thermal-pressure loads, thermoelastic analysis is applied on orthotropic nose cap of a hypersonic vehicle in the flight trajectory. The results show that the thermal-stress of sphere section presents annular, the Mises equivalent stress is of periodicity of 90° in tail so obviously that a reasonable connection is important. Finally, two connections, bolted and plug connection, are considered to relax the overnice tail constrains, and the results show that the plug connection is reasonable for the hypersonic heterogeneous orthotropic nose cap

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Han, Fang, Jinwei Jiang, Kai Xu, and Ning Wang. "Damage Detection of Common Timber Connections Using Piezoceramic Transducers and Active Sensing." Sensors 19, no. 11 (May 31, 2019): 2486. http://dx.doi.org/10.3390/s19112486.

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Timber structures have been widely used due to their low-cost and environmental-friendly properties. It is essential to monitor connection damage to ensure the stability and safety of entire timber structures since timber connection damage may induce catastrophic incidents if not detected in a timely manner. However, the current investigations on timber connections focus on mechanical properties and failure modes, and the damage detection of timber connection receives rare attention. Therefore, in this paper, we investigate the damage detection of four common timber connections (i.e., the screw connection, the bolt connection, the decussation connection, and the tooth plate connection) by using the active sensing method. The active sensing method was implemented by using a pair of lead zirconate titanate (PZT) transducers: one PZT patch is used as an actuator to generate stress waves, and the other works as a sensor to detect stress waves after propagating across the timber connection. Based on the wavelet packet energy analysis, the signal energy levels of received stress waves under different damage extent are quantified. Finally, by comparing the signal energy between the intact status and the damage status of the timber connection, we find that the energy attenuates with increasing severity of the connection damage. The experimental results demonstrate that the active sensing method can realize real-time monitoring of timber connection damage, which can guide further investigations.

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Gomes, Carlos, Elza M. M. Fonseca, and Hernâni M. Lopes. "Thermomechanical Analysis of Steel-to-Timber Connections under Fire and the Material Density Effect." Applied Sciences 12, no. 20 (October 18, 2022): 10516. http://dx.doi.org/10.3390/app122010516.

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This work presents a thermomechanical numerical analysis of a steel-to-timber connection with dowels in tension when exposed to fire using ANSYS ® software. Three different wood density materials were considered. The connection is built by a three-dimensional model with a thermomechanical boundary condition. A nominal temperature–time curve, ISO 834, was used to simulate the fire effect. Numerical simulation to determine the field of thermal and mechanical stresses was performed using a combined problem. A temperature field was imposed for a given time instant of fire exposure, calculated through a thermal analysis in a transient regime. This temperature profile was coupled to an incremental tensile load, allowing the determination of the maximum mechanical resistance of the connection. According to this methodology, the load-bearing capacity of the connections in each fire rating will be determined. In addition, the numerical results allow verification of the wood density influence on the mechanical resistance of the connection exposed to fire. In conclusion, the load-bearing capacity decreases with fire exposure and with lower material density. With the proposed methodology, the effect of the wood density on the heat transferred through the connection under fire can be verified, and a thermomechanical complex model is proposed to solve and analyze this type of problem, which is the great motivation in this work. The numerical methodology represents well the thermomechanical behavior of the connection under fire. This procedure can be used, considering other different parameters, to improve the design and allow the study of the connection behavior as an alternative to the experimental tests.

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Minaker, Bruce P., and Zheng Yao. "Design and Analysis of an Interconnected Suspension for a Small Off-Road Vehicle." Archive of Mechanical Engineering 64, no. 1 (March 1, 2017): 5–21. http://dx.doi.org/10.1515/meceng-2017-0001.

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Abstract The paper describes the design and multibody dynamic analysis of a mechanically interconnected suspension, as applied to a small off-road vehicle. Interconnected suspensions use some sort of connection between the axles of a vehicle in order improve ride quality or vehicle handling. In principle, the connection may be hydraulic, pneumatic, or mechanical, but for installation in a typical passenger car, a mechanical connection would likely be impractical due to weight and complexity. In this paper, the vehicle in question is the University of Windsor SAE Baja off-road competition vehicle, and novel mechanical design is proposed. A multibody dynamic analysis is performed on the proposed design using the EoM open source multibody software developed by the University of Windsor Vehicle Dynamics and Control research group in order to assess any potential performance improvements.

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Journal articles on the topic 'Mechanical connection'

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