Journal articles: 'Shear transfet'

1

Durand, Cyril, Emilien Oliot, Didier Marquer, and Jean-Pierre Sizun. "Chemical mass transfer in shear zones and metacarbonate xenoliths: a comparison of four mass balance approaches." European Journal of Mineralogy 27, no. 6 (December 14, 2015): 731–54. http://dx.doi.org/10.1127/ejm/2015/0027-2475.

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2

Goodman, S. "The Portsoy–Duchray Hill Lineament: a review of the evidence." Geological Magazine 131, no. 3 (May 1994): 407–15. http://dx.doi.org/10.1017/s0016756800011158.

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AbstractThe Portsoy–Duchray Hill Lineament has been widely quoted in the literature as a major zone of discontinuities, running from Portsoy on the Banff coast to the Duchray Hill area in Perthshire. A review of the evidence indicates that there is no single structural entity running from Portsoy to Duchray Hill; the term ‘Portsoy-Duchray Hill lineament’ should be avoided. There are, however, significant along- and across-strike variations in geological history across a zone which extends from Portsoy to the Cabrach (the ‘Portsoy Line’). Certain elements can be identified also in areas further south, e.g. the Coyles of Muick shear zone and Glen Doll fault.The Portsoy Line was initiated as a zone of syn-depositional faulting, with resulting facies variations similar to those seen across the Glen Doll fault. The Portsoy Line was reactivated as a ductile shear zone during Caledonian orogenesis, while the Glen Doll fault is a later, more brittle, structure. The shear zone from Portsoy to the Cabrach forms the western branch of a system of shears which acted to focus syn-orogenic basic magmatism, and differential movement during post- metamorphic uplift. The Coyles of Muick shear zone is the most southerly example of the system of shears, and there is probably a transfer zone along Deeside between it and the Portsoy-Cabrach shear zone, now obscured in part by the Ballater Granite. The focused shear zones serve to delineate the Buchan area, with its low pressure metamorphism and distinctive structural style, from areas to the south and west where the structural level was deeper, and deformation more pervasive.

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Wu, Cong Xiao, Yun Zhou, Xue Song Deng, and Cong Yong Wu. "Study on Mechanical Behavior of the Key Components of High-Level Transfer Frame-Shear Wall Structure with Viscous Dampers." Advanced Materials Research 163-167 (December 2010): 1241–46. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1241.

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Based on the limited demand of transfer beam sectional dimension of tall building structure with transfer story in Technical Specification for Concrete Structures of Tall Building, a high-level transfer frame-shear structure with viscous dampers is presented for simulating the mechanical behavior of the key components effect with consideration the transfer beam depth with 1/6, 1/8 and 1/10 calculation span. The analysis results indicate that the internal force of the transfer beam, frame-support column of transfer story, shear wall above transfer level and base shear wall is obviously reduced, with the reduction of the transfer beam depth. Comparison with the high-level transfer frame-shear structure, the internal force of the key components of the high-level transfer frame-shear structure with viscous dampers also is reduced. Therefore, the limited demand of the transfer beam sectional dimension and the construction measure of the shear wall could be properly reduced in the high-level transfer frame-shear structure with viscous dampers.

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Jagwal, M. R., I. Ahmad, and M. Sajid. "Non-axisymmetric Homann stagnation point flow of Maxwell nanofluid towards fixed surface." International Journal of Modern Physics C 32, no. 06 (March 6, 2021): 2150076. http://dx.doi.org/10.1142/s0129183121500765.

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In this paper, the heat-transfer enhancement phenomena have been explored for non-axisymmetric Homann stagnation-point flow of Maxwell fluid. Furthermore, Buongiorno’s model for nanofluid is utilized to study remarkable impacts of random (Brownian) motion and thermophoresis of dispersed nanoparticle. The Maxwell nanofluid generates new class of asymmetric stagnation-point flows that depends on ratio [Formula: see text] ([Formula: see text] is shear and [Formula: see text] is strain rate) and Deborah number [Formula: see text]. The numerical and asymptotic consequences of leading equations for current model are obtained using shooting technique. The solution is obtained for diverse values of involved parameters over [Formula: see text]. The wall shear stress, heat/mass transfer rate, velocities, temperature distributions and nanoparticle concentration compared to their large-[Formula: see text] asymptotic behaviors were presented for different values of involved parameters. It is observed that the numerical outcomes of wall shear stress, heat-transfer rate and mass flux best agree with their perturbative solution for large-[Formula: see text]. Moreover, the wall shears [Formula: see text], [Formula: see text] grow as viscoelasticity raises. The reduction in heat flux and particles mass diffusion occurs near the wall boundary-layer due to clustering of nanoparticles. However, heated surface during thermophoresis is pushed nanoparticles into Brownian motion which constitute to enhance the heating process.

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Yi, Ling, and Cong Xiao Wu. "Study on Mechanical Behavior of the Key Components of High-Level Transfer Frame-Shear Wall Structure with Steel-Lead Viscoelastic Dampers." Advanced Materials Research 446-449 (January 2012): 2340–44. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.2340.

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Based on the limited demand of transfer beam sectional dimension of tall building structure with transfer story in Technical Specification for Concrete Structures of Tall Building, a high-level transfer frame-shear structure with steel-lead viscoelastic dampers is presented for simulating the mechanical behavior of the key components effect with consideration the transfer beam depth with 1/6, 1/8 and 1/10 calculation span. The analysis results indicate that the internal force of the transfer beam, frame-support column of transfer story, shear wall above transfer level and base shear wall is obviously reduced, with the reduction of the transfer beam depth. Comparison with the high-level transfer frame-shear structure, the internal force of the key components of the high-level transfer frame-shear structure with the steel-lead viscoelastic dampers also is reduced. Therefore, the limited demand of the transfer beam sectional dimension and the construction measure of the shear wall could be properly reduced in the high-level transfer frame-shear structure with the steel-lead viscoelastic dampers.

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Davids, William G., Zongmu Wang, George Turkiyyah, Joe P. Mahoney, and David Bush. "Three-Dimensional Finite Element Analysis of Jointed Plain Concrete Pavement with EverFE2.2." Transportation Research Record: Journal of the Transportation Research Board 1853, no. 1 (January 2003): 92–99. http://dx.doi.org/10.3141/1853-11.

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The features and concepts underlying EverFE2.2, a freely available three-dimensional finite element program for the analysis of jointed plain concrete pavements, are detailed. The functionality of EverFE has been greatly extended since its original release: multiple tied slab or shoulder units can be modeled, dowel misalignment or mislocation can be specified per dowel, nonlinear thermal or shrinkage gradients can be treated, and nonlinear horizontal shear stress transfer between the slabs and base can be simulated. Improvements have been made to the user interface, including easier load creation, user-specified mesh refinement, and expanded visualization capabilities. These new features are detailed, and the concepts behind the implementation of EverFE2.2 are explained. In addition, the results of two parametric studies are reported. The first study considers the effects of dowel locking and slab-base shear transfer and demonstrates that these factors can significantly affect the stresses in slabs subjected to both uniform shrinkage and thermal gradients. The second study examines transverse joint mislocation and dowel looseness on joint load transfer. As expected, joint load transfer is greatly reduced by dowel looseness. However, while transverse joint mislocation can significantly reduce peak dowel shears, it has relatively little effect on total load transferred across the joint for the models considered.

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7

Shapiro, Alan. "Drag-Induced Transfer of Horizontal Momentum between Air and Raindrops." Journal of the Atmospheric Sciences 62, no. 7 (July 1, 2005): 2205–19. http://dx.doi.org/10.1175/jas3460.1.

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Abstract A theoretical model for unsteady drag-induced transfer of horizontal momentum between air and raindrops in moderate to heavy rainfall is presented. The model accounts for a two-way coupling in which the relative horizontal motion between air and raindrops appears as a drag forcing in both the air and raindrop equations of motion. Analytical solutions of these coupled equations are obtained for the case of rain falling through (i) an initial step change in environmental wind, (ii) a uniform shear profile, and (iii) periodically varying vertical shears of various wavenumbers (a crude proxy for turbulent eddies). Formulas for the propagation (descent) speeds of the shear zones are obtained for (ii), (iii), and for the later stage of (i). However, these speeds are generally quite small—on the order of a few centimeters per second even for heavy rainfall. More importantly, the solutions of (i) and (iii) indicate that the drag interaction leads to a decay of the velocity gradients. A formula for the e-folding decay time of the periodically varying shear profiles indicates that at small wavelengths, the smallest decay times are found for the smaller drops, but at large wavelengths, the smallest decay times are found for the larger drops. The decay times decrease with decreasing wavelength, and approach a value equal to the reciprocal of the product of the rainwater mixing ratio and a drag parameter in the limit of vanishing wavelength. For parameters typical of moderate to heavy rainfall, the small-scale decay times are on the order of a few minutes.

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8

Emiko, Lim, Vinayagam Thamaraikkannan, Wee Tiong Huan, and Tamilselvan Thangayah. "Shear transfer in lightweight concrete." Magazine of Concrete Research 63, no. 6 (June 2011): 393–400. http://dx.doi.org/10.1680/macr.9.00162.

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9

Jwad, Eman, and Waleed Awad Waryosh. "SHEAR TRANSFER BEHAVIOR OF FIBROUS CONCRETE." Journal of Engineering and Sustainable Development 27, no. 1 (January 1, 2023): 104–16. http://dx.doi.org/10.31272/jeasd.27.1.9.

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Fibrous concrete's shear strength behavior is important in structural design. Brackets, corbels, and ledger beams are examples of concrete members that might collapse in shear. Such a failure might be brittle and sudden. Fibers improve concrete's behavior by increasing residual shear transfer and reducing crack development and extension. In an experimental study, nine push-off specimens were divided into three groups and examined as part of the experiment. Conventional concrete, conventional concrete with 1% glass fiber, and conventional concrete with 1% steel fiber were the groups. There were three push-off specimens with various shear reinforcement ratios in each of the groups that were examined (0.0, 0.45, and 0.68%). The specimens utilized had dimensions of 500mm x 250mm x 125mm. The vertical slip and horizontal separation at the shear plane were measured using two-stroke linear variable displacement transducers (LVDT). The effect of fiber type and the ratio of transverse reinforcement across the shear plane were the parameters evaluated. The presence of fibers enhances final shear strength, which is more obvious in specimens without stirrups in the shear plane. Where the addition of 1% of glass fiber to normal strength concrete increased ultimate shear strength by 32.26%, 12.38%, and 12.5%, while adding 1% of steel fiber to normal strength concrete increased ultimate shear strength by up to 53.22%, 19%, and 25%, respectively, for the specimens without stirrups, two stirrups, and three stirrups. The fibrous specimens were stiffer and ductile failure was seen. Steel fibers improved overall concrete shear behavior better than glass fibers.

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10

Ahn, Byeonguk, Thomas H. K. Kang, Su-Min Kang, and Jang Keun Yoon. "Punching Shear Stress in Post-Tensioned Transfer Plate of Multi-Story Buildings." Applied Sciences 10, no. 17 (August 31, 2020): 6015. http://dx.doi.org/10.3390/app10176015.

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The design of a post-tensioned transfer plate is typically controlled by shear force—in particular, punching shear at the slab-column connection. To verify the accuracy of the separated model only for one floor currently used in the design of a post-tensioned transfer plate, results were compared to a complete model with multi-story building system for which two representative residential building plans were used to emulate physical structural systems. Punching shear stress for the separated model was calculated using the eccentric shear stress model presented in ACI 318. Punching shear stress was found to be overestimated in the separated model, given that interaction between transfer plates and upper shear walls cannot be reflected therein. Differences at column locations were also noted as the number of stories below the transfer floor increased. Consequently, the separated model is not recommended for design of post-tensioned transfer plates. A complete model is more suitable for more realistic and potential cost-effective design, through the inclusion of the interaction between transfer plates and upper shear walls.

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11

Su, R. K. L., and M. H. Cheng. "Earthquake-induced shear concentration in shear walls above transfer structures." Structural Design of Tall and Special Buildings 18, no. 6 (October 2009): 657–71. http://dx.doi.org/10.1002/tal.458.

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12

Olonisakin, Akin A., and Scott DB Alexander. "Mechanism of shear transfer in a reinforced concrete beam." Canadian Journal of Civil Engineering 26, no. 6 (December 1, 1999): 810–17. http://dx.doi.org/10.1139/l99-044.

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This paper presents an analysis of the results of five tests conducted on four reinforced concrete beams. The tests were performed principally to investigate the mechanics of internal shear transfer in a transversely loaded concrete beam with no shear reinforcement. Test specimens consisted of simply supported wide beams with steel flexural reinforcement. The reinforcement for two of the beams was epoxy coated. The shear span to depth ratios were 2.93, 3.32, and 3.81. Measured strains on the reinforcement were used to divide the total shear into its beam and arching action components. In all tests, beam and arching action shear transfer mechanisms were found to coexist. Apart from that with the longest span, all tests ended with rupture of the concrete along a diagonal failure surface. It is concluded that shear failure may be caused by a shift in the internal mechanics of shear transfer from beam action to arching action. Because this shift may be initiated by the yielding of reinforcement, it can be associated with the formation of a plastic hinge. There was no observed effect on the mechanics of shear transfer that could be attributed to epoxy coating of the reinforcement.Key words: arching action, beam action, one-way shear, shear transfer, reinforced concrete beam, bond forces, bar force gradient.

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Schmidt, Maximilian, Philipp Schmidt, Sebastian Wanka, and Martin Classen. "Shear Response of Members without Shear Reinforcement—Experiments and Analysis Using Shear Crack Propagation Theory (SCPT)." Applied Sciences 11, no. 7 (March 30, 2021): 3078. http://dx.doi.org/10.3390/app11073078.

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The determination of the ultimate shear capacity and the identification of the corresponding load-carrying mechanisms of concrete members without shear reinforcement has been an ongoing research topic for over 100 years. Based on a full mechanical model, the Shear Crack Propagation Theory (SCPT) enables to analyze and understand the ever-changing interplay of crack propagation, evolution of stresses at the crack tip and in uncracked concrete parts, as well as the activation of shear transfer actions within the growing shear crack during the entire loading process. In this paper, selected experimental investigations for further validation of the SCPT are presented. These beam shear test results are then compared to the theoretical results emerging from the SCPT algorithm. Finally, the evolution of different shear transfer actions (e.g., aggregate interlock and dowel action) during the entire loading process is evaluated and discussed.

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Lee, Dong-Ryul. "A Study on Heat Transfer Enhancement for a Shear-Thinning Fluid in Triangular Ducts." Journal of the Korea Academia-Industrial cooperation Society 12, no. 9 (September 30, 2011): 3808–14. http://dx.doi.org/10.5762/kais.2011.12.9.3808.

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15

Joshi, Sreenivasa Prasad, P. Poluraju, and Umesh K. Singh. "Analysis of Dowel Action in Reinforced Concrete Beams with Shear Reinforcement." Civil and Environmental Engineering 17, no. 2 (December 1, 2021): 644–53. http://dx.doi.org/10.2478/cee-2021-0064.

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Abstract The shear transfer mechanism was examined to view the contributions of different components of shear transfer such as aggregate interlocking, dowel force and uncracked compression zone. Understanding the role of various shear transfer components with transverse reinforcement provided was complex due to traditional difficulties involved in detail assessment of accompanying kinematics during the failure. In the present paper, the issue was addressed by employing sixteen specimens and grouped under two categories representing conventional beams and beams with preformed cracks and were tested under four - point bending load with a shear span to depth ratio of 1.26 by increasing the characteristic strength of concrete. From the results obtained, empirical formulas proposed were also evaluated and it was concluded that the results were consistent and contribution of shear transfer across uncracked compression zone was maximum in shear resistance with transverse reinforcement provided. Later structural behaviour was also assessed and it was concluded that beams with preformed cracks had exhibited greater stiffness thus nullifying the effect of aggregate interlocking in shear transfer.

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Liang, Bin, and Meng Yang. "A Stress Analytical Solution of Steel Reinforced Concrete Transfer Beam." Advanced Materials Research 163-167 (December 2010): 1329–32. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1329.

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The structural behavior of a steel reinforced concrete (SRC) transfer beam in high-rise building is studied in the paper. Mechanical properties and deformation characteristics between transfer beam and shear wall are analyzed by an analytic approach and the nonlinear finite element method. The stress analytical solutions for the SRC transfer beam are obtained and agree with finite element calculation data in an actual project. The results show that the beam can be as an eccentric tension member, meanwhile the performance of shear wall must be considered. And it also shows that the shear stress and vertical compressed stress must be considered in end both transfer beam and shear wall and there is interaction between the beam and the shear walls above. The results can be used to describe the behavior of the SRC transfer beam under complicated loads.

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Lv, Meng Zhou, De Quan Liu, and Xiao Yu Sun. "Analysis on Bearing Wall with Opening Transfer Beams Subjected to Vertical Loads." Applied Mechanics and Materials 578-579 (July 2014): 830–34. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.830.

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In shear wall structure with supporting frames, the whole structure' s bearing mechanism is greatly influenced by the opening of shear wall on transfer beam under vertical loads. In this paper, finite element analyses of bearing wall with different type of opening transfer beams subjected to vertical loads were carried out, the influences of opening on transfer beam and shear wall were studied, the stress distribution law and the position of the neutral axises of the transfer beams were presented. The analysis results showed that horizontal stress and the neutral axises of transfer beam change with opening ratio of wall.The points offered in the paper can be referred in shear wall structure with supporting frames design.

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Tan, Yi Qiu, Yun Liang Li, Luo Ke Li, and Zhong Jun Xue. "The Dowel Group Action in Jointed Concrete Pavement." Advanced Materials Research 622-623 (December 2012): 1892–95. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1892.

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The wheel load transfer across a joints in concrete pavement is accomplished mainly by dowel bar system, dowels are installed in order to allow shear load transfer across slab joints. The dowel group action has been examined in this paper via from using of 3-D FE mode. Numerical model results are presented in four formats in this study, including shear force diagram, load transfer ratio by shear force, dowel shear force distribution and dowel shear ratio. The relationships between applied wheel load and dowel group action will be useful in the design and evaluation of dowel jointed concrete pavements.

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19

Ni, Xiaojing, Ahehehinnou Ougbe Anselme, Guannan Wang, Yuan Xing, and Rongqiao Xu. "Experimental Investigation of Shear Keys for Adjacent Precast Concrete Box Beam Bridges." Materials 15, no. 4 (February 16, 2022): 1459. http://dx.doi.org/10.3390/ma15041459.

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Longitudinal cracking in shear keys is one of the most frequently recurring problems in the adjacent precast concrete box beam bridges. The relative displacement across the shear key (RDSK) under loads has been used as a direct indicator for shear key cracking. Therefore, accurately simulating the interface between the shear key and beam or providing the correct relationship between shear transfer and RDSK is key to evaluating the damage of the shear key. In this study, the shear transfer properties of four types of composite specimens were studied by static displacement-controlled bi-shear (SDS), cyclic force-controlled bi-shear (CFS), and cyclic displacement-controlled bi-shear (CDS) tests. Two finite element models (FEMs) were established to calibrate and validate the interfacial material parameters. The results showed that adding reinforcement bars over the joints that connect the block and the overlay could improve the bearing capacity of the shear key. Formulae were proposed for the relation between shear force transfer and RDSK in engineering applications. The values of the interfacial material parameters used in the traction–separation model to simulate the interface between the shear key and beam were recommended.

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Nijhawan, Jagdish C. "Insulated Wall Panels - Interface Shear Transfer." PCI Journal 43, no. 3 (May 1, 1998): 98–101. http://dx.doi.org/10.15554/pcij.05011998.98.101.

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21

Millard, S. G., and R. P. Johnson. "Shear transfer in cracked reinforced concrete." Magazine of Concrete Research 37, no. 130 (March 1985): 3–15. http://dx.doi.org/10.1680/macr.1985.37.130.3.

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Simmonds, Sidney H., and Brian W. Doblanko. "Shear-moment transfer in flat plates." Canadian Journal of Civil Engineering 13, no. 3 (June 1, 1986): 327–34. http://dx.doi.org/10.1139/l86-045.

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For many concrete slabs without beams, the critical design factor is the shear stress in the vicinity of the column–slab junction. This is particularly so near edge and corner columns where the shear stresses due to the unbalanced moments may account for the major portion of these stresses. The determination of these design stresses in accordance with the provisions of Standard CAN3-A23.3-M84 is both time consuming and subject to numerical mistakes. Based on these provisions, design charts were developed, which greatly reduce the amount of calculation required and are suitable for routine use in the design of slabs. The use of the charts is illustrated by examples. Key words: design, flat plate, moment transfer, reinforced concrete, shear, slabs.

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Tan, K. H., and M. A. Mansur. "Shear Transfer in Reinforced Fiber Concrete." Journal of Materials in Civil Engineering 2, no. 4 (November 1990): 202–14. http://dx.doi.org/10.1061/(asce)0899-1561(1990)2:4(202).

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Ramadan, K., and Iskander Tlili. "Shear work, viscous dissipation and axial conduction effects on microchannel heat transfer with a constant wall temperature." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 14 (July 29, 2015): 2496–507. http://dx.doi.org/10.1177/0954406215598799.

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Convective heat transfer in a microchannel rarefied gas flow with a constant wall temperature boundary condition is investigated numerically. The boundary shear work, viscous dissipation and axial conduction are all included in the study. An analytical solution is also derived for the fully developed flow condition including the boundary shear work. The proper thermal boundary condition considering the sliding friction at the wall is implemented. A comparative study is performed to quantify the effect of the shear work on heat transfer in the entrance – and the fully developed – regions of the microchannel for both gas cooling and heating. The results demonstrate that the effect of shear work on heat transfer is significant and it increases with increasing both the Knudsen number and Brinkman number. Neglecting the shear work in a microchannel slip flow leads to over- or under estimation of the Nusselt number considerably. For a fully developed flow in a microchannel with constant wall temperature boundary condition, the contribution of the shear work to heat transfer can be around 55% in the vicinity of the upper limit of the slip flow regime, regardless of how small the non-zero Brinkman number can be. Including the shear work is therefore crucial in the analysis of microchannel heat transfer and should not be neglected.

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Wang, Qianqian, Hua Ma, Zhenbao Li, Zhenyun Tang, Haiyan Chen, and Peng Li. "Shear Resistance Capacity of Interface of Plate-Studs Connection between CFST Column and RC Beam." Mathematical Problems in Engineering 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/9456768.

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The combination of a concrete-filled steel tube (CFST) column and reinforced concrete (RC) beam produces a composite structural system that affords good structural performance, functionality, and workability. The effective transmission of moments and shear forces from the beam to the column is key to the full exploitation of the structural performance. The studs of the composite beam transfer the interfacial shear force between the steel beam and the concrete slab, with the web bearing most of the vertical shear force of the steel beam. In this study, the studs and vertical steel plate were welded to facilitate the transfer of the interfacial shear force between the RC beam and CFST column. Six groups of a total of 18 specimens were used to investigate the shear transfer mechanism and failure mode of the plate-studs connection, which was confirmed to effectively transmit the shear forces between the beam and column. The results of theoretical calculations were also observed to be in good agreement with the experimental measurements.

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Zhang, Shuo Ying, and Xiao Xia Zhao. "Transfer Matrix Method for Natural Vibration Period of Shear Wall Structures with Large Space at Lower Part." Applied Mechanics and Materials 405-408 (September 2013): 1100–1105. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.1100.

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This paper established the theoretical equations of transfer matrix method for shear wall structures with large space at lower part to calculate natural vibration periods. The bottom structure is simplified as a hinged plane system with a complex frame and a complex shear wall, and the upper structure is simplified as a complex shear wall. Transfer matrixes between adjacent stories were established according to the fluctuated equations of complex members and equilibrium and displacement compatibility conditions. After multiplying the transfer matrix of every story, transfer matrix of the whole structure was established. Finally, the solving equation for the natural period was deduced by the boundary conditions. An example showed the feasibility and reliability of the method. In comparison with FEM, it is a convenient and universal method and is recommended for preliminary design of shear wall structures with large space at lower part.

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Nairn, J. A. "Generalized Shear-Lag Analysis Including Imperfect Interfaces." Advanced Composites Letters 13, no. 6 (November 2004): 096369350401300. http://dx.doi.org/10.1177/096369350401300601.

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Two recent papers showed that shear-lag analysis can be an effective tool for stress analysis of composites when done properly and when applied to problems for which it is appropriate. This paper extends the prior analysis of concentric cylinders to a generalized shear-lag analysis in which the transverse variations of shear stress are described by arbitrary shape functions. The shear-lag analysis and solution can be derived in terms of averages of the new shape functions. The shape functions can be specified after analysis and tailored to suit specific problems. This paper also extends shear-lag analysis of both concentric cylinders and multilayered structures to model imperfect interfaces between the layers. The generalized methods were applied to several issues in fibre/matrix stress transfer modelled as two concentric cylinders. By modifying prior shape functions, it was possible to extend shear-lag analysis to work for any fibre volume fraction. Prior shear-lag models were all unacceptable at low fibre volume fraction. The full shear-lag analysis can model stress transfer for both isotropic and anisotropic fibres. The new imperfect interface capability was used to interpret experimental results for fibre/matrix stress transfer in terms of interface quality.

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OFUCHI, Hidewo, Motoharu SUZUKI, Syogo MINAMI, Katsuhiko NAKANO, and Yasuhiro MATSUZAKI. "STUDY ON SHEAR TRANSFER CONSIDERING SHEAR DISPLACEMENT IN CONNECTION OF PRECAST CONCRETE." Journal of Structural and Construction Engineering (Transactions of AIJ) 62, no. 491 (1997): 97–104. http://dx.doi.org/10.3130/aijs.62.97.

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Muhodir, Sabih H. "Study of Shear Transfer in Modified Push-Off Members Using Finite Elements Method." Cihan University-Erbil Scientific Journal 6, no. 2 (August 27, 2022): 81–88. http://dx.doi.org/10.24086/cuesj.v6n2y2022.pp81-88.

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This paper aims to investigate numerical study onto the behavior of modified push-off specimens under the action of direct shear stress. Based on the tow-dimensional finite element model developed in this research, the contribution of the aggregate interlock to resist the shear stress along the shear plane, the effect of existing of the compressive stress acting across the shear plane, the effect of the parallel reinforcement in resisting shear stress, the effect of the shear reinforcement parameter, the strains in the concrete and steel and the actual distribution of the shear stress along the shear plane were studied. To verify the accuracy and applicability of the suggested finite element model, a comparison between the results obtained in this study and those obtained experimentally by other authors was carried out. Comparison showed that the finite element results were in good agreement with the experimental results. It has been found that, for modified push-off specimens of groups without shear reinforcement across the shear plane the diagonal tension crack within the shear plane occurred at the load level which is closely to the ultimate shear strength respectively, while for specimens with both shear and parallel reinforcement , the first crack formed at about (33.7% - 53.0%) of the ultimate strength , also the investigation showed that the presenting of the shear reinforcement normal to the shear plane are significantly increased the shear transfer stress for all levels of loading.

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Rosti, Marco E., and Shu Takagi. "Shear-thinning and shear-thickening emulsions in shear flows." Physics of Fluids 33, no. 8 (August 2021): 083319. http://dx.doi.org/10.1063/5.0063180.

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Lim, Emiko, Thamaraikkannan Vinayagam, Tiong Huan Wee, and Tamilselvan Thangayah. "Shear transfer in fibre-reinforced lightweight concrete." Magazine of Concrete Research 63, no. 1 (January 2011): 13–20. http://dx.doi.org/10.1680/macr.2011.63.1.13.

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Pak, Y. E. "Longitudinal shear transfer in fiber optic sensors." Smart Materials and Structures 1, no. 1 (March 1, 1992): 57–62. http://dx.doi.org/10.1088/0964-1726/1/1/008.

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Krauthammer, T., and K. L. Western. "Joint Shear Transfer Effects on Pavement Behavior." Journal of Transportation Engineering 114, no. 5 (September 1988): 505–29. http://dx.doi.org/10.1061/(asce)0733-947x(1988)114:5(505).

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34

Jun, Kyung Soo, and Subhash C. Jain. "Oxygen Transfer in Bubbly Turbulent Shear Flow." Journal of Hydraulic Engineering 119, no. 1 (January 1993): 21–36. http://dx.doi.org/10.1061/(asce)0733-9429(1993)119:1(21).

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35

Gohnert, Mitchell. "Horizontal shear transfer across a roughened surface." Cement and Concrete Composites 25, no. 3 (April 2003): 379–85. http://dx.doi.org/10.1016/s0958-9465(02)00050-1.

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36

Fafitis,, A., and M. P. Divakar,. "TRANSFER OF SHEAR TRACTIONS ALONG ROUGH CRACKS." Journal of the Mechanical Behavior of Materials 4, no. 4 (September 1993): 307–18. http://dx.doi.org/10.1515/jmbm.1993.4.4.307.

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37

Shi, X., and R. Richards. "Seismic bearing capacity with variable shear transfer." Bulletin of the New Zealand Society for Earthquake Engineering 28, no. 2 (June 30, 1995): 153–63. http://dx.doi.org/10.5459/bnzsee.28.2.153-163.

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The seismic degradation of bearing capacity for drained soils is shown to depend primarily on two factors related to earthquake acceleration: (a) the lateral inertial forces in the structure transmitted as shear at the foundation-soil interface and (b) the lateral body forces in the soil itself. Both induce shear stresses using up the reserve strength of the soil to carry the footing load. During those short periods when this reserve strength provided by the static design factor of safety is exhausted, the footing settles and moves laterally. Solutions for this seismic limit state defining the critical acceleration at which it occurs are determined for any value of shear transfer first by the "exact" method of characteristics and then by a simple Coulomb-type approximate mechanism. Expressions for seismic bearing capacity factors that are directly related to their static counterparts are nearly identical by either method. Thus a straightforward sliding block procedure based on the Coulomb mechanism with examples is presented for computing accumulating settlements due to the periodic loss of bearing capacity. Conversely, this approach leads to a modified static design procedure for shallow footings to limit seismic settlements in a prescribed earthquake intensity zone.

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38

Jiang, Haowen, Yueguo Zhang, Handuo Fan, Qikai Liu, and Linghang Du. "Stress Analysis of Vertical Bar Additional Connector at the Joint of Fabricated Shear Wall." Journal of Physics: Conference Series 2148, no. 1 (January 1, 2022): 012056. http://dx.doi.org/10.1088/1742-6596/2148/1/012056.

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Abstract Although there are many mainstream reinforcement connection methods, the realization of force transfer between reinforcement is the starting point of all connections and the most important inspection standard. Aiming at the vertical connection of the fabricated shear wall, this paper proposes a new type of additional connector connection, and two fabricated shear walls connected by new types of additional connectors and a cast-in-situ shear wall were established. The dimensions and material parameters of the fabricated shear wall connected by the new additional connector were the same as those of the cast-in-situ shear wall. The finite element software ABAQUS is used to perform static finite element analysis on fabricated shear walls and cast-in-situ shear walls connected by new additional connectors. By comparing the static finite element simulation results, the results show that the new additional connector can ensure the effective force transfer of reinforcement.

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Wei, Jinjia, Yasuo Kawaguchi, Bo Yu, and Ziping Feng. "Rheological Characteristics and Turbulent Friction Drag and Heat Transfer Reductions of a Very Dilute Cationic Surfactant Solution." Journal of Heat Transfer 128, no. 10 (February 24, 2006): 977–83. http://dx.doi.org/10.1115/1.2345422.

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Turbulent friction drag and heat transfer reductions and rheological characteristics of a very dilute cationic surfactant solution, cetyltrimethyl ammonium chloride (CTAC)/sodium salicylate (NaSal) aqueous solution, were experimentally investigated at various temperatures. It was found that there existed a critical temperature above which drag and heat transfer reductions disappeared and shear viscosities rapidly dropped to that of water. It was surmised that drag and heat transfer reductions had a certain relationship with rheological characteristics and a rheological characterization of CTAC∕NaSal surfactant solutions was performed to clarify this relationship. The effects of Reynolds number and fluid temperature and concentration on drag and heat transfer reductions were qualitatively explained by analyzing the measured shear viscosity data at different shear rates and solution temperatures and concentrations. The Giesekus model was found to fit the measured shear viscosities reasonably well for different temperatures and concentrations of the surfactant solution and the model parameter values obtained by fitting were correlated with temperature at certain solution concentrations. From the correlation results, the temperature effect on viscoelasticity of surfactant solutions was analyzed to relate the rheological characteristics with drag and heat transfer reduction phenomena.

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40

Ramadan, K., and I. Tlili. "A Numerical Study of the Extended Graetz Problem in a Microchannel with Constant Wall Heat Flux: Shear Work Effects on Heat Transfer." Journal of Mechanics 31, no. 6 (May 18, 2015): 733–43. http://dx.doi.org/10.1017/jmech.2015.29.

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ABSTRACTHeat convection of a microchannel gas flow with constant wall heat flux boundary condition is investigated numerically, considering viscous dissipation and axial conduction. The shear work due to the slipping fluid at the wall is incorporated in the analysis. An analytical solution for fully developed conditions is also derived. The effect of the shear work on heat transfer is quantified through a comparative analysis in both the entrance- and the fully developed- regions. The analysis shows that the shear work effect on heat transfer is considerable, and neglecting this term leads to an overestimation of the Nusselt number in gas heating and an underestimation in gas cooling. The over/under estimation of the Nusselt number is dependent on both the Knudsen number and the Brinkman number. The results presented also demonstrate the significance of the shear work in the developing flow region. It is shown that in the developing flow region the Nusselt number is less sensitive to viscous dissipation when the shear work is neglected. It can be concluded from this study that the shear work effect is significant and neglecting it can lead to considerable errors in microchannel flow heat transfer.

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Kang, Su-Min, Su-Jeong Na, and Hyeon-Jong Hwang. "Punching shear strength of reinforced concrete transfer slab-column connections with shear reinforcement." Engineering Structures 243 (September 2021): 112610. http://dx.doi.org/10.1016/j.engstruct.2021.112610.

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Looi, D. T. W., and R. K. L. Su. "Seismic axial collapse of short shear span RC shear walls above transfer structure." IOP Conference Series: Materials Science and Engineering 431 (November 8, 2018): 122005. http://dx.doi.org/10.1088/1757-899x/431/12/122005.

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KATORI, Keiichi, Yoshio MATSUSHITA, and Koichi MATSUNO. "DIRECT SHEAR TRANSFER MECHANISM BETWEEN CONCRETE AND GLUED LAMINATED TIMBER BY SHEAR KEY." Journal of Structural and Construction Engineering (Transactions of AIJ) 77, no. 677 (2012): 1151–58. http://dx.doi.org/10.3130/aijs.77.1151.

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Chen, Jin, Shi Yong Jiang, Zheng Jiang, Xiang Rong Zeng, Lei Zhang, and Wen Luo. "Nonlinear Numerical Analysis of Transfer Beam Under Complex Situation." Advanced Materials Research 671-674 (March 2013): 847–50. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.847.

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Taking a transfer beam of high-rise building in the actual engineering as an example, nonlinear numerical analysis on transfer beam structure,which is several complex stress situation about eccentric and different sizes of eccentricity of the upper short limb shear wall , is carried by the finite element software ANSYS, its stress performance and deformation characteristics are studied. Analysis results show that: (1)impact of eccentricity of the upper short limb shear wall on stress performance of transfer beam is very big, which is more unfavorable than that of no eccentric. Eccentric made structure be under stress state of bending, shear, torsion. (2)The eccentricity increased more significant effect on the displacement of transfer beam, and bigger effect on reliability under normal conditions. (3)Both from view of the design point, or from view of the economic point, the wall eccentric action in transfer beam should be avoided as far as possible to meet the construction requirements.

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Zhang, Shuo Ying, and Ming Hai Dong. "A Transfer Matrix Method for Frame Shear Wall Structures." Applied Mechanics and Materials 482 (December 2013): 207–12. http://dx.doi.org/10.4028/www.scientific.net/amm.482.207.

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This paper established the theoretical equations of transfer matrix method for frame shear wall structures to solve natural vibration and elastic response under earthquakes. Columns at each storey are combined into an equivalent shear member and shear walls are combined into an equivalent bending member. The structure is simplified as a double member system with the two members being coordinated by the in-plane infinite rigid floors. Transfer matrix of the structure was derived according to the fluctuated equations of equivalent members and the equilibrium and displacement compatibility conditions. After considering the boundary conditions at the bottom and top of structure, it presented the equations and method to solve seismic response, natural frequencies and modes of vibration of the structure. In comparison with FEM, it is a more convenient and universal method and is recommended for preliminary design of frame shear wall structures.

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Burte, P. R., Yong-Taek Im, T. Altan, and S. L. Semiatin. "Measurement and Analysis of Heat Transfer and Friction During Hot Forging." Journal of Engineering for Industry 112, no. 4 (November 1, 1990): 332–39. http://dx.doi.org/10.1115/1.2899596.

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An investigation of heat transfer and friction during hot forging has been performed using experimental and analytical techniques. The interface heat transfer coefficient was measured in experiments in which two flat H-13 tool steel dies were heated to different initial temperatures and brought together under varying pressure levels, or the two dies were heated to the same temperature and used to upset aluminum alloy 2024-0 rings under both isothermal as well as nonisothermal conditions. The coupling between heat transfer and friction during hot forging has been studied by analysis of data from the ring experiments and the generation of heat transfer coefficient and friction shear factor calibration curves derived from finite element simulations. By this means, the effects of forging pressure, deformation rate, and lubrication on the heat transfer coefficient and the friction shear factor were established. It was shown that, for the geometry studied, the value of the friction shear factor is independent of the heat transfer coefficient and vice versa, at least to a first order.

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47

Pries, A. R., B. Reglin, and T. W. Secomb. "Structural response of microcirculatory networks to changes in demand: information transfer by shear stress." American Journal of Physiology-Heart and Circulatory Physiology 284, no. 6 (June 1, 2003): H2204—H2212. http://dx.doi.org/10.1152/ajpheart.00757.2002.

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Matching blood flow to metabolic demand in terminal vascular beds involves coordinated changes in diameters of vessels along flow pathways, requiring upstream and downstream transfer of information on local conditions. Here, the role of information transfer mechanisms in structural adaptation of microvascular networks after a small change in capillary oxygen demand was studied using a theoretical model. The model includes diameter adaptation and information transfer via vascular reactions to wall shear stress, transmural pressure, and oxygen levels. Information transfer is additionally effected by conduction along vessel walls and by convection of metabolites. The model permits selective blocking of information transfer mechanisms. Six networks, based on in vivo data, were considered. With information transfer, increases in network conductance and capillary oxygen supply were amplified by factors of 4.9 ± 0.2 and 9.4 ± 1.1 (means ± SE), relative to increases when information transfer was blocked. Information transfer by flow coupling alone, in which increased shear stress triggers vascular enlargement, gave amplifications of 4.0 ± 0.3 and 4.9 ± 0.5. Other information transfer mechanisms acting alone gave amplifications below 1.6. Thus shear-stress-mediated flow coupling is the main mechanism for the structural adjustment of feeding and draining vessel diameters to small changes in capillary oxygen demand.

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Wu, Hai Yyan, Meng Ding, and Yi Su. "The Study of Cavity Flow and Transpiration Cooling in Supersonic Combustion." Applied Mechanics and Materials 390 (August 2013): 370–74. http://dx.doi.org/10.4028/www.scientific.net/amm.390.370.

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To unravel the flow and heat transfer mechanism of the cavity in supersonic combustion, this paper studied the interaction of cavities and shear-layers by experiments and numerical simulation. The experiments of Nero-particle Plane Laser Scatter (NPLS) and Plane Laser-Induced Fluorescence (PLIF) were conducted to study the cavity shear-layer. In the same supersonic condition the flow was studied by the method of Large Eddy Simulation (LES). And we discussed the cavity shear-layer influence to supersonic flow and combustion, analyzed the evolvement of injection shear-layer, probed into the heat transfer of supersonic combustion, and studied the transpiration cooling of cavities. The results show: in supersonic combustion, the initial flame spreads to the upstream through the cavity shear layer, the highest wall temperature occur at the rear edge of cavity, and transpiration cooling can effectively protect the wall materials.

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Dbouk, T. "Heat transfer and shear-induced migration in dense non-Brownian suspension flows: modelling and simulation." Journal of Fluid Mechanics 840 (February 13, 2018): 432–54. http://dx.doi.org/10.1017/jfm.2018.72.

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Modelling and simulation are developed, generalized and validated for both heat transfer and shear-induced particle migration in dense non-colloidal laminar suspension flows. Past theory and measurements for the effective thermal conductivity in porous materials at zero shear rate are coupled to more recent effective thermal diffusivity measurements of sheared suspensions. The suspension effective heat transfer affected by the local shear rate ($\dot{\unicode[STIX]{x1D6FE}}$), the phenomenon of shear-induced particle migration (SIM), the buoyancy effects ($\unicode[STIX]{x0394}\unicode[STIX]{x1D70C}$) and the thermal Péclet number ($Pe_{d_{p}}=\dot{\unicode[STIX]{x1D6FE}}d_{p}^{2}/\unicode[STIX]{x1D6FC}_{f}$, where $d_{p}$ is the diameter of rigid particles and $\unicode[STIX]{x1D6FC}_{f}$ is the fluid phase thermal diffusivity) at the particle scale are all considered in the present constitutive three-dimensional modelling. Moreover, the influence of the temperature, the shear rate and the particle volume fraction ($\unicode[STIX]{x1D719}$) on the suspension effective viscosity ($\unicode[STIX]{x1D702}_{S}$), the suspension effective thermal properties and the fluid density ($\unicode[STIX]{x1D70C}_{f}$) are taken also into account. The present contribution represents an emerging field of heat transfer applications of complex fluid flows and is very beneficial for many future applications where concentrated suspension laminar flows with conjugate heat transfer may be present (e.g. for designing more innovative and compact heat exchangers).

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Cheng, Xing Hua, and Fu Ma. "Beam Frame Supported Shear Wall Structure Based on the ANSYS Finite Element Static Analysis of Beam-Type Transfer Floor." Advanced Materials Research 788 (September 2013): 508–10. http://dx.doi.org/10.4028/www.scientific.net/amr.788.508.

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This article research frame supported shear wall structure Beam-type Transfer layer at the supporting wall (across full) shape and the supporting column two structure forms, in the same form of vertical uniformly distributed load, the stress distribution variation trend and characteristics of the analyzed and discussed. Using large-scale finite element analysis software ANSYS to two different Beam-type Transfer structure of the nonlinear simulation analysis, combined with the stress nephogram of X to the analysis of two kinds of structure forms of the transfer beam and upper wall and the frame work characteristics [. The results of the study show that: In terms of the vertical stress, wall shape across the full shear wall in the stress of the beam structure performance is better, Column will produce large stress in the beam. Shear wall and stress of the transfer beam work together to transform beam has a great influence.

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Journal articles on the topic 'Shear transfet'

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