Gotowe bibliografie tematyczne / Axial loads

Gotowa bibliografia na temat „Axial loads”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 27 lutego 2023

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Artykuły w czasopismach na temat "Axial loads"

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Zhang, Ming, Rongmin Jiang i Hong Nie. "Analysis of axial stiffness characteristics of a mechanism of fluid bag shock absorber under alternative factors". Journal of Vibroengineering 18, nr 2 (31.03.2016): 682–98. http://dx.doi.org/10.21595/jve.2016.16610.

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A mechanism of fluid bag shock absorber which could provide axial shock protection under small displacement and small deformation was designed. The finite element model of the mechanism was established in ABAQUS, the different types of loads imposed on the bottom of mechanism when the mechanism worked in different environment were described and the load stiffness matrix was obtained when pressure loads were imposed on the mechanism. The effects of the notch in fluid bag on axial stiffness characteristics were discussed. The results indicate that the flip of inner shell occurs as the axial concentrated load is imposed to the bottom of inner shell and the notch in fluid bag has little effects on the increment of pressure and volume variation of bag. The equivalent axial force generated by pressure loads imposed on the inner shell was calculated, the axial displacement of inner shell as well as increment of bag pressure caused by pressure loads is larger than concentrated load. The effects of different factors affecting the axial stiffness characteristics were discussed. The factor of load type has almost no effects on the axial stiffness variation, and has small impact on the increment of pressure variation of bag; Outer shell appears to be one of the crucial factors affecting the axial stiffness and increment of bag pressure variations; Fluid bag is the key factor determining the axial stiffness characteristics of mechanism, both of the axial displacement of inner shell and increment of bag pressure increase with loads when the pressure loads are imposed on the surface of fluid bag.
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Capobianco, G., N. Bohun, M. Gratton, R. Serra, A. Zinbi i N. Rigollet. "Both radial and axial load distribution measurement on a V-band clamp by a new load cell design". Insight - Non-Destructive Testing and Condition Monitoring 64, nr 8 (1.08.2022): 432–36. http://dx.doi.org/10.1784/insi.2022.64.8.432.

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This paper presents a method for determining the axial and radial load distribution of the moment generated in a V-band clamp and is validated experimentally using finite element analysis (FEA). The method comprises a slotted flange, which is distinguished by having three different profiles for different levels of load symmetrically divided among eight sectors. Each sector is characterised and calibrated. The load cell is analysed using finite element Abaqus software to predict and corroborate the system. In the experimental test, the axial and radial loads are measured using strain gauges for each sector and the total axial load is validated by three button sensors. Tests on the V-band clamp were successfully carried out and indicated a non-uniform distribution of axial and radial loads, with three highlights relating to existing papers: improved results for axial loads, new results for radial loads and an analysis of the moment and its direction, which is consistent with finite element studies.
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Wang, Yan Shuang, Yan Wu i Hai Feng Zhu. "Quasi-Static Analysis on a Large-Sized Four Contact-Point Slewing Bearing with Negative Axial Play". Applied Mechanics and Materials 307 (luty 2013): 219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.307.219.

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A quasi-static analysis of a large-sized four contact-point slewing bearing with negative axial play is performed. The values of normal contact loads of a slewing ring bearing between balls and inner/outer ring were computed at different negative axial plays without applied load. The results show that the normal loads of the four contact points increase as the absolute value of negative axial play increases. Slightly changing negative axial play makes big change on normal contact load. Startup friction torque can be improved largely by increasing slightly the absolute value of negative axial play.
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Yu, Yang, Yi Hua Dou, Fu Xiang Zhang i Xiang Tong Yang. "Analysis of Premium Connection of Connecting and Sealing Ability Loaded by Axial Tensile Loads". Applied Mechanics and Materials 268-270 (grudzień 2012): 737–40. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.737.

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It is necessary to know the connecting and sealing ability of premium connection for appropriate choices of different working conditions. By finite element method, the finite element model of premium connection is established and the stresses of seal section, shoulder zone and thread surface of tubing by axial tensile loads are analyzed. The results show that shoulder zone is subject to most axial stresses at made-up state, which will make distribution of stresses on thread reasonable. With the increase of axial tensile loads, stresses of thread on both ends increase and on seal section and shoulder zone slightly change. The maximum stress on some thread exceed the yield limit of material when axial tensile loads exceed 400KN. Limited axial tensile loads sharply influence the contact pressures on shoulder zone while slightly on seal section. Although the maximum contact pressure on shoulder zone drop to 0 when the axial tensile load is 600KN, the maximum contact pressure on seal section will keep on a high level.
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Hansapinyo, Chayanon, Suchart Limkatanyu, Hexin Zhang i Thanongsak Imjai. "Residual Strength of Reinforced Concrete Beams under Sequential Small Impact Loads". Buildings 11, nr 11 (4.11.2021): 518. http://dx.doi.org/10.3390/buildings11110518.

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Sequential small impact loads may not collapse structures directly but could weaken the strength of structures. This study aimed to investigate the impact of these sequential small impact loads on the strength of the reinforced concrete beams. First, six sequential impact loads were applied to the test specimens. Then, the residual static capacity of the impacted specimens was determined by the ultimate static load test, compared with those of undamaged specimens. The experiment was composed of 12 specimens having identical dimensions. The variable parameters were the magnitude of the axial load and shear reinforcement. Under the sequential small impacts, the axial load improves the impact performance. It reduces the tensile strain of the longitudinal reinforcement. Hence, the flexural tensile crack propagation is limited. In addition, the local damage at the impact location is minimized and the shear plug induced diagonal shear crack is prevented. The axial force is also able to diminish the adverse effect of the large spacing stirrups. Large impact load could alter the failure of a designed flexural critical reinforced concrete beam without axial load to the shear failure. Although the axial load improves the impact response, the Residual Resistance Index (RRI) decreases with axial load. For the damaged specimens with axial load, the ultimate static load is lower than the calculated concrete shear capacity and more severe diagonal shear cracks were found. It can be obviously said that the prior impact damage decreases the concrete shear capacity.
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Cui, Hu Wei, Ping Yang, Can Shen i Liang Zhou. "Research on Load Bearing Behavior of Ship Stiffened Plates under Cyclic Loads". Advanced Materials Research 904 (marzec 2014): 446–49. http://dx.doi.org/10.4028/www.scientific.net/amr.904.446.

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This paper adopts nonlinear finite element method to study the load bearing behavior of ship stiffened plates with different dimensions. The research focuses on the compressive ultimate strength, axial rigidity, and residual plastic deflection of the stiffened plates under cyclic compressive and tensile loads. The results indicate that the compressive ultimate strength and axial rigidity of stiffened plates decrease with the incremental cyclic loads significantly, meanwhile, the residual plastic deflection increases with the cyclic loads.
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Alhamati, Abdullah Ali Nasser, Abdul Halim Ghazali i Jamalodin Norzaie. "Investigation on the behavior of rigid polyvinylchloride pipes subjected to uniaxial compression loads". ASEAN Journal on Science and Technology for Development 23, nr 3 (1.11.2017): 145. http://dx.doi.org/10.29037/ajstd.101.

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The objective of this research was to investigate the capability of rigid Polyvinylchloride (PVC-U) pipes to sustain axial loads. The behavior of PVC-U pipes specimens subjected to short-term uniaxial compression loads were experimentally investigated. Results of the load-displacement tests on pipes of different wall thickness, diameter, and specimen heights were recorded. The experimental test results show that the PVC-U pipes are capable of supporting loads greater than the required design load (3.4 kN). Increasing the pipe specimen height decreases the pipe strength for supporting the axial loads. Euler buckling was observed in the pipe specimens with small diameter and long axial height. Furthermore, an attempt has been made to utilize the ANSYS finite element commercial package to model the pipe system using eight noded brick element and the results were compared with those obtained from the experimental tests. Good agreement was found between the two sets of results, within the elastic range of the load-displacement curve.
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Flanagan, Dennis, Justin Phillips, Matthew Connor, Timothy Dyer i Kazem Kazerounian. "Hoop Stress and the Conical Connection". Journal of Oral Implantology 41, nr 1 (1.02.2015): 37–44. http://dx.doi.org/10.1563/aaid-joi-d-12-00180.

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Dental implant-abutment connection design has developed into the use of a conical, shank and socket connection between the implant abutment and fixture. The connection between these two elements is, in effect, a conical wedge that may exert lateral forces under load that may result in fracture of the coronal implant socket fixture walls. This study evaluated the axial loading on a conical connection and found that axial loads were well tolerated but off-axial loads were not. Fracture of the implant coronal socket fixture wall occurred under off-axial loading.
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Li, Zheming, Malcolm D. Bolton i Stuart K. Haigh. "Cyclic axial behaviour of piles and pile groups in sand". Canadian Geotechnical Journal 49, nr 9 (wrzesień 2012): 1074–87. http://dx.doi.org/10.1139/t2012-070.

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Piled foundations are often subjected to cyclic axial loads. This is particularly true for the piles of offshore structures, which are subjected to rocking motions caused by wind or wave actions, and for those of transport structures, which are subjected to traffic loads. As a result of these cyclic loads, excessive differential or absolute settlements may be induced during the piles’ service life. In the research presented here, centrifuge modelling of single piles and pile groups was conducted to investigate the influence of cyclic axial loads on the performance of piled foundations. The influence of installation method was investigated and it was found that the cyclic response of a pile whose jacked installation was modelled correctly is much stiffer than that of a bored pile. During displacement-controlled axial load cycling, the pile head stiffness reduces with an increasing number of cycles, but at a decreasing rate; during force-controlled axial load cycling, more permanent settlement is accumulated for a bored pile than for a jacked pile. The performance of individual piles in a pile group subjected to cyclic axial loads is similar to that of a single pile, without any evident group effect. Finally, a numerical analysis of axially loaded piles was validated by centrifuge test results. Cyclic stiffness of soil at the base of pre-jacked piles increases dramatically, while at base of jacked piles it remains almost constant.
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Wang, Dong, i Mao See Wu. "Elastic buckling analysis of an embedded infinitely long rod under combined axial and torsional loads". Mathematics and Mechanics of Solids 24, nr 12 (24.06.2019): 3779–94. http://dx.doi.org/10.1177/1081286519856062.

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In this paper, expressions for the critical axial–torsional loads are derived for the buckling of an elastic rod embedded in an elastic medium. The derivation is based on the assumption that the deforming rod encounters a response force from the surrounding medium, and a first-order perturbation analysis of the governing equilibrium equations. It is shown that a dimensionless universal buckling relationship, independent of material and geometry, exists between the critical axial load, both in compression and tension, and the critical torsional load. A reducing axial compression, or an increasing axial tension, enhances the critical torsional load. In addition, two different mode shapes are predicted for the same critical combined loads, and the buckled shapes are generally three-dimensional.
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Rozprawy doktorskie na temat "Axial loads"

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Knappett, Jonathan Adam. "Piled foundations in liquefiable soils : accounting for axial loads". Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.595853.

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Lund, Julie. "Buckling of cylindrical members with respect to axial loads". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for produktutvikling og materialer, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26324.

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Managing technology and taking advantage of the opportunities to further development is essential to ensure increased hydrocarbon recovery and barrier security for upstream energy companies. Interwell is a well intervention company operating globally, with main competence in plug and straddle solutions with related setting, pulling and measurement tools. In many of Interwell’s product lines, cylindrical members and pipes are being exposed to axial compressive loads in both static and dynamic conditions. The purpose of this study was to increase the knowledge on how to facilitate full utilization of the limited design space available for Down Hole Equipment by minimizing the gap between the numerical and the experimental results and to find global safety factors. This study introduces options to supplement the safe design of axially loaded members, focusing mainly on the Setting Chamber Mandrel, a cylindrical member in the Hydrostatic Setting Unit. The Setting Chamber mandrel has to resist compression caused by increasing well pressure while running in hole. The prominence of the failure mode depends on several factors including member slenderness, section slenderness, strength, influence of connections and restrains, geometric imperfections and residual stresses.The members in this study have been characterized into three general types depending on their proneness to buckling; short, intermediate and long. The dividing lines between short, intermediate and long members shall not be considered as accurately defined; furthermore the maximum load-carrying capacity of a member in each category is based upon different types of mechanical failure scenarios. The Setting Chamber Mandrel is classified as intermediate and will fail by both yielding and buckling; i.e. inelastic buckling behavior. Failure of intermediate members could be progressive and unpredictable, and it is common practice to use large safety factors when predicting the buckling strength. A safe design approach has been suggested for predicting the critical load and critical stresses of intermediate members by comparing experimental results to existing literature.The experimental study consists of three experimental tests; TEST 1: length and diameter, TEST 2: temperature and TEST 3: well pressure. The results obtained from the experimental study were compared with NS-EN 1993-1-1:2005, FE-analyses and established linear buckling theory; Euler and J.B. Johnsons equations. Linear elastic eigenvalue buckling analysis and nonlinear static buckling analyses were performed with finite element software package Abaqus 6.12. In order to understand the buckling behavior of the Setting Chamber Mandrel elastic-plastic material properties was added to the nonlinear large deformation buckling analysis. The results from the analyses were used as a pre-study for the experimental testing and for post-buckling analysis to validate the results to establish the reliability and uncertainties of the numerical methods. Results indicate that NS-EN 1993-1-1:2005 and the nonlinear analysis techniques are suitable to accurately predict the critical buckling load of an axially loaded compression member. The results from the nonlinear static large deformation buckling analysis using elastic-plastic material properties show most agreement with the experimental studies.The partial safety factors in the global safety factor presented in this study are utilized based on anticipated conditions to ensure that build in functionality and constructional integrity of the Setting Chamber Mandrel will not affect the overall integrity of the Hydrostatic Setting Unit. The appropriate global safety factor for intermediate members with similar shape and boundary conditions as the Setting Chamber Mandrel is concluded to be 1.5 when calculating buckling strength with Interwell’s safe design procedure. In order to obtain a high degree of confidence in the design of axially loaded compression members it is recommended to follow the complete methodology provided in this study.
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Boggs, Thomas P. "Determination of axial load and support stiffness of continuous beams by vibration analysis". Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-11102009-020304/.

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Rupp, John F. "MODELING OF STEEL-JACKETED REINFORCED CONCRETE UNDER AXIAL COMPRESSIVE LOADS". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1330615432.

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Paggett, Jon W. "Neutron diffraction study of load response and residual stresses in WC-(Ni/Co) composites". Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4109.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2005.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 25, 2006) Vita. Includes bibliographical references.
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Yun, Xiaoyou 1965. "Geomechanical behaviour of biaxially loaded rock". Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115913.

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The stress state at the boundary of any underground mine opening is that of plane stress. This planar state of stress can be simulated in laboratory by subjecting a cubic rock specimen to a biaxial loading condition. Thus, research on the behaviour of biaxially loaded rock is important for better understanding of the stability of mining fronts such as crown pillar skin, drift face or shaft floor.
The objective of this research is to study the geomechanical behaviour of biaxially loaded rock. Three rock types were selected, namely limestone, granite and sandstone.
The laboratory work was conducted using a newly developed, 500-tonne biaxial loading frame, that is equipped with a servo-controlled load and displacement system. Recently patented in China, the new biaxial loading frame is spatially symmetric and equally rigid in both directions. Steel brush platens and solid platens with and without MoS2 were developed to help examine the end friction effect on biaxial strength. It is found that the biaxial strength can decrease up to 26.7% with the increase of cubic specimen size from 75 mm to 150 mm. The biaxial strength increases by 29.3% with the increase of loading rate from 1 MPa/s to 10 MPa/s, for granite. The biaxial strength of granite specimen decreases by nearly 6% when either solid platens with MoS 2 lubricant or brush platens are used. A comparison of the sigma 1-sigma2 failure envelopes reveals that the shape of the envelope and the location of the peak biaxial strength are dependent on the rock type.
Varying intensities of rock spalling generally initiate at the free faces of the specimen when sigma1 and sigma2 exceed sigma c/2. Ultimate failure occurs in the form of an out-of-plane shear failure, which splits the rock specimen into two or more wedges.
It is shown that both Mohr-Coulomb and Hoek-Brown criteria underestimate the biaxial strength of the rock. The Drucker-Prager failure criterion appears to provide poor correlation with experimental results. A new empirical biaxial rock failure criterion for intact rock is derived and another, accounting for rock mass characteristics through the Geological Strength Index (GSI), is then proposed.
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Alday, John Hane. "The correlation of randomness with high tip losses in an axial flow fan stage". Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-11242009-020017/.

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Lam, Sze Yue. "Effects of axial load, shielding and shape on negative skin friction on piles /". View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20LAM.

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熊朝暉 i Zhaohui Xiong. "Reinforced concrete column behavior under cyclic loading". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31243836.

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Xiong, Zhaohui. "Reinforced concrete column behavior under cyclic loading /". Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23530121.

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Książki na temat "Axial loads"

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Li︠a︡tkher, V. M. Seismic loads. Hoboken, New Jersey: John Wiley & Sons, Inc., 2016.

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Danielson, D. A. Analytical tripping loads for stiffened plates. Monterey, Calif: Naval Postgraduate School, 1994.

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Gur, J. Ari. Experimental studies with metal plates subjected to inplane axial impact. Haifa: Technion Israel Institute of Technology, 1985.

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Design of highly loaded axial-flow fans and compressors. White River Junction, Vt: Concepts ETI, 2000.

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Tennyson, Roderick C. Buckling of composite cylinders under axial compression. Amsterdam: Elsevier, 1987.

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United States. National Aeronautics and Space Administration., red. Axisymmetric deformations and stresses of unsymmetrically laminated composite cylinders in axial compression with thermally-induced preloading effects. Bethesda, MD: Carderock Division, Naval Surface Warfare Center, 1993.

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Tennyson, Roderick C. Buckling of imperfect sandwich cylinders under axial compression. [S.l.]: [s.n.], 1990.

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Tom, Cordes, Lease Kevin i Society of Automotive Engineers. Fatigue Design and Evaluation Committee., red. Multiaxial fatigue of an induction hardened shaft. Warrendale, Pennsylvania: SAE, 1999.

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Cheung, E. W. Buckling of composite sandwich cylinders under axial compression. Amsterdam: Elsevier Science Publishers, 1988.

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Cheung, Eric Waihon. Buckling of composite sandwich cylinders under axial compression. [Downsview, Ont.]: Dept. of Aerospace Science and Engineering, University of Toronto, 1988.

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Części książek na temat "Axial loads"

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M°Kenzie, W. M. C. "Members Subject to Combined Axial and Flexural Loads". W Design of Structural Steelwork to BS 5950 and C-EC3, 123–44. London: Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-14612-3_4.

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Li, L. "Stable Limit Axial Load Ratios of Concrete Filled Steel Tubular Beam-Columns Under Varying Axial Loads". W Lecture Notes in Civil Engineering, 1701–12. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8079-6_157.

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Segerlind i Larry J. "Chapter 10 Designing for Combined Loads: Axial and Bending". W Designing Structural Components for Machines, 299–333. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2010. http://dx.doi.org/10.13031/2013.29518.

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Siddique, S., J. Deng i E. Mohamedelhassan. "Dynamic Stability of Elastic Beams Under Axial Arbitrary Loads". W Lecture Notes in Civil Engineering, 303–12. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0511-7_26.

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Schaeffner, Maximilian, Christopher M. Gehb, Robert Feldmann i Tobias Melz. "Forward vs. Bayesian Inference Parameter Calibration: Two Approaches for Non-deterministic Parameter Calibration of a Beam-Column Model". W Lecture Notes in Mechanical Engineering, 173–90. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_15.

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AbstractMathematical models are commonly used to predict the dynamic behavior of mechanical structures or to synthesize controllers for active systems. Calibrating the model parameters to experimental data is crucial to achieve reliable and adequate model predictions. However, the experimental dynamic behavior is uncertain due to variations in component properties, assembly and mounting. Therefore, uncertainty in the model parameters can be considered in a non-deterministic calibration. In this paper, we compare two approaches for a non-deterministic parameter calibration, which both consider uncertainty in the parameters of a beam-column model. The goal is to improve the model prediction of the axial load-dependent lateral dynamic behavior. The investigation is based on a beam-column system subjected to compressive axial loads used for active buckling control. A representative sample of 30 nominally identical beam-column systems characterizes the variations in the experimental lateral axial load-dependent dynamic behavior. First, in a forward parameter calibration approach, the parameters of the beam-column model are calibrated separately for all 30 investigated beam-column systems using a least squares optimization. The uncertainty in the parameters is obtained by assuming normal distributions of the separately calibrated parameters. Second, in a Bayesian inference parameter calibration approach, the parameters are calibrated using the complete sample of experimental data. Posterior distributions of the parameters characterize the uncertain dynamic behavior of the beam-column model. For both non-deterministic parameter calibration approaches, the predicted uncertainty ranges of the axial load-dependent lateral dynamic behavior are compared to the uncertain experimental behavior and the most accurate results are identified.
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Skoczeń, Błażej, i Jacek Skrzypek. "Inadaptation Mechanisms in Bellows Subject to Sustained Pressure and Cyclic Axial Loadings in Terms of Finite Deformations". W Inelastic Behaviour of Structures under Variable Loads, 341–61. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0271-1_19.

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Zhang, Jianxun, Pengchong Zhang, Huicun Song i Lei Zhu. "Transverse Vibration Characteristics of Clamped-Elastic Pinned Beam Under Compressive Axial Loads". W Advances in Frontier Research on Engineering Structures, 527–39. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_47.

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AbstractBased on the Bernoulli–Euler theory, the vibration characteristics of a clamped-elastic pinned beam under the elastic constraint and the compressive axial loads are derived and verified by finite element method. The results of examples show that the natural frequency of the beam decreases with loads increase and the frequency increases with the increase of the elastic constraint stiffness. When the constraint stiffness increases from 104 to 108 N/m, the first-order natural frequency becomes 4.24 times, the second-order natural frequency becomes 2.19 times, and the third-order natural frequency becomes 1.57 times; when the constraint is weak, the loads change is mainly reflected in the first mode shape. When the constraint stiffness is 104 N/m, the first-order natural frequency decreases by 20%, the second-order modal natural frequency changes by 3%, and the third-order natural frequency changes by less than 1%. The range of the elastic constraints with significant changes in the natural frequencies of the higher-order modes is larger. When the first-order frequency is taken to 100EI/l3, the change tends to be flat, the second-order frequency is about five times that of the first-order, and the range of the third-order frequency is 15 times or more.
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Castano, Dario, i Ozden O. Ochoa. "Nonlinear Effects on Delamination Characterization of Composites under Multi-axial Loads". W Composite Structures 5, 431–46. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1125-3_24.

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Randolph, Mark F. "Cyclic Interface Shearing in Sand and Cemented Soils and Application to Axial Response of Piles". W Mechanical Behaviour of Soils Under Environmentally Induced Cyclic Loads, 481–528. Vienna: Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-1068-3_10.

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Herrmann, K. P., i Y. Q. Wang. "Elasto-Plastic Analysis for Cracked Fibrous Composites under Axial and Thermal Loads". W Inelastic Deformation of Composite Materials, 445–64. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4613-9109-8_21.

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Streszczenia konferencji na temat "Axial loads"

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Shen, G., i W. R. Tyson. "Limit Loads for Pipelines With Axial Surface Flaws". W 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1833.

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The limit loads for pipelines with axial surface flaws have been evaluated by using a strip yield model at levels of ligament yield and ligament collapse. The former was defined as that at which the plastic zone first reaches the back surface, and the later is that at which the plastic zone spreads over the entire ligament. The evaluated collapse load has been used to estimate the failure stress of pipelines containing axial surface flaws. Predictions have been compared with existing experimental data.
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Provasi, Rodrigo, Fernando Geremias Toni i Clóvis de Arruda Martins. "Equivalent Model for Interlocked Carcass Under Axial Loads". W ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54381.

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The modelling of flexible pipe interlocked carcasses is complicated when considering all the geometric complexity of their profile. A possible approach is to model them as cylindrical equivalent layers. To follow this path several alternatives can be considered in changing the geometrical and material properties. However, the thickness and the mean radius of those layers must not be changed to not interfere with the diameter of the other flexible pipe layers. In this paper, a model of an orthotropic cylindrical layer, with the same thickness and mean diameter of the original carcass layer is constructed and its material parameters are adjusted for axial loads using a finite element model of the real carcass profile.
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Jin, Shan, Shuai Yuan i Yong Bai. "Collapse of Tubes Under Combined Bending and Axial Compression Loads". W ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77458.

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In practical application, pipelines will inevitably experience bending and compression during manufacture, transportation and offshore installation. The mechanical behavior of tubes under combined axial compression and bending loads is investigated using experiments and finite element method in this paper. Tubes with D/t ratios in the range of 40 and 97 are adopted in the experiments. Then, the ultimate loads and the local buckling modes of tubes are studied. The commercial software ABAQUS is used to build FE models to simulate the load-shortening responses of tubes under combined loads. The results acquired from the ABAQUS simulation are compared with the ones from verification bending experiment, which are in good agreement with each other. The models in this paper are feasible to analyze the mechanical properties of tubes under combined axial compression and bending loads. The related results may be of interest to the manufacture engineers.
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Kristoffersen, Martin, Tore Børvik, Magnus Langseth, Håvar Ilstad i Erik Levold. "Transverse Deformation of Pressurised Pipes With Different Axial Loads". W ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62507.

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Pipelines residing on the seabed are exposed to various hazards, one of them being denting, hooking and release of the pipeline by e.g. anchors or trawl gear. As a pipeline is displaced transversely in a hooking event, an axial tensile load resisting the displacement builds up in the pipeline. This study examines the effect of applying three different axial loads (zero, constant, and linearly increasing) to a pipe while simultaneously deforming it transversely. A fairly sharp indenter conforming to the prevailing design codes was used to deform the pipes. These three tests were repeated with an internal pressure of about 100 bar for comparison. Adding an axial load appeared to increase the pipe’s stiffness in terms of the force-displacement curve arising from deforming the pipe transversely. The internal pressure also increased the stiffness, and produced a more local dent in the pipe compared with the unpressurised pipes. All tests were recreated numerically in finite element simulations. Generally, the results of the simulations were in good agreement with the experiments.
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Bai, Yong, Yu Wang i Peng Cheng. "Analysis of Reinforced Thermoplastic Pipe (RTP) under Axial Loads". W International Conference on Pipelines and Trenchless Technology. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412619.075.

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Błachut, J., i D. Sala. "Plastic Loads for Cones Subjected to Internal Pressure and Axial Tension". W ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65184.

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The paper discusses envelopes of combined loading corresponding to: (i) first yield (ii) plastic load, and (iii) plastic instability load. The latter two were researched in the past but for a single load, only. The past idea has been expanded in the paper to two, practically relevant, simultaneously acting loads. Conical shell serves here as an example. It is shown that the ratio of area of plastic load envelope to the area associated with the first-yield envelope is 3.2 whilst the similar ratio of plastic instability to the first-yield envelope amounts to 25.8. This indicates ‘a modest’ (320 %) increase of possible range of loading, and a substantial reserve of strength above the end-of-elastic behavior (approx. 26-times).
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Auciello, N. M. "Computational model of vibration of Timoshenko beam under axial loads". W The 5th International Virtual Scientific Conference. Publishing Society, 2016. http://dx.doi.org/10.18638/ictic.2016.5.1.278.

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Chen, Shouhui, Xin Ding, Raul Fangueiro i Honglei Yi. "Tensile performance of construction membrane materials under multi-axial loads". W International Conference on Experimental Mechnics 2008 and Seventh Asian Conference on Experimental Mechanics, redaktorzy Xiaoyuan He, Huimin Xie i YiLan Kang. SPIE, 2008. http://dx.doi.org/10.1117/12.839358.

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Perez, Jared J., Wendelin H. Mueller, III i Leon Kempner, Jr. "Strength of Steel Angles Subjected to Short Duration Axial Loads". W Electrical Transmission and Substation Structures 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41077(363)42.

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Li, Z., S. K. Haigh i M. D. Bolton. "The Behavior of a Single Pile under Cyclic Axial Loads". W GeoShanghai International Conference 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41106(379)17.

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Raporty organizacyjne na temat "Axial loads"

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Salgado, Rodrigo. Use of Pile Driving Analysis for Assessment of Axial Load Capacity of Piles. Purdue University, grudzień 2012. http://dx.doi.org/10.5703/1288284314671.

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Robinson, W. Full-scale evaluation of multi-axial geogrids in road applications. Engineer Research and Development Center (U.S.), marzec 2022. http://dx.doi.org/10.21079/11681/43549.

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The U.S. Army Engineer Research and Development Center (ERDC) constructed a full-scale unsurfaced test section to evaluate the performance of two prototype geogrids, referred to as NX950 and NX750, in road applications. The test section consisted of a 10-in.-thick crushed aggregate surface layer placed over a very weak 2 California Bearing Ratio (CBR) clay subgrade. Simulated truck traffic was applied using one of ERDC’s specially designed load carts outfitted with a single-axle dual wheel truck gear. Rutting performance and instrumentation response data were monitored at multiple traffic intervals. It was found that the prototype geogrids improved rutting performance when compared to the unstabilized test item, and that the test item containing NX950 had the best rutting performance. Further, instrumentation response data indicated that the geogrids reduced measured pressure and deflection near the surface of the subgrade layer. Pressure response data in the aggregate layer suggested that the geogrids redistributed applied pressure higher in the aggregate layer, effectively changing the measured stress profile with an increase in pavement depth.
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Strom, Ralph W., i Robert M. Ebeling. Simple Methods Used to Estimate the Limit-State Axial Load Capability of Spillway Invert Slabs. Fort Belvoir, VA: Defense Technical Information Center, sierpień 2004. http://dx.doi.org/10.21236/ada427082.

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Chou, Chung-Che, i Sung-Cheng Wu. TEST AND FINITE ELEMENT ANALYSIS OF HIGH-STRENGTH CONCRETE FILLED STEEL BOX COLUMNS UNDER COMBINED HIGH-AXIAL LOAD AND CYCLIC-LATERAL LOAD. The Hong Kong Institute of Steel Construction, grudzień 2018. http://dx.doi.org/10.18057/icass2018.p.158.

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Wang, Wei, Michael Brown, Matteo Ciantia i Yaseen Sharif. DEM simulation of cyclic tests on an offshore screw pile for floating wind. University of Dundee, grudzień 2021. http://dx.doi.org/10.20933/100001231.

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Screw piles need to be upscaled for offshore use e.g. being an alternative foundation and anchor form for offshore floating wind turbines, although the high demand of vertical installation forces could prevent its application if conventional pitch-matched installation is used. Recent studies, using numerical and centrifuge physical tests, indicated that the vertical installation force can be reduced by adopting over-flighting which also improved axial uplift capacity of the screw pile. The current study extends the scope to axial cyclic performance with respect to the installation approach. Using quasi-static discrete element method (DEM) simulation it was found that the over-flighted screw pile showed a lower displacement accumulation rate, compared to a pitch-matched installed pile, in terms of load-controlled cyclic tests. Sensitivity analysis of the setup of the cyclic loading servo shows the maximum velocity during the tests should be limited to avoid significant exaggeration of the pile displacement accumulation but this may lead to very high run durations.
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Guo, Yan-Lin, Meng-Zheng Wang, Jing-Shen Zhu i Xiao Yang. LOAD-BEARING CAPACITY OF CONCRETE-INFILLED DOUBLE STEEL CORRUGATED-PLATE WALLS WITH T-SECTION UNDER COMBINED AXIAL COMPRESSION AND BENDING MOMENT. The Hong Kong Institute of Steel Construction, grudzień 2018. http://dx.doi.org/10.18057/icass2018.p.076.

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Terzic, Vesna, i William Pasco. Novel Method for Probabilistic Evaluation of the Post-Earthquake Functionality of a Bridge. Mineta Transportation Institute, kwiecień 2021. http://dx.doi.org/10.31979/mti.2021.1916.

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While modern overpass bridges are safe against collapse, their functionality will likely be compromised in case of design-level or beyond design-level earthquake, which may generate excessive residual displacements of the bridge deck. Presently, there is no validated, quantitative approach for estimating the operational level of the bridge after an earthquake due to the difficulty of accurately simulating residual displacements. This research develops a novel method for probabilistic evaluation of the post-earthquake functionality state of the bridge; the approach is founded on an explicit evaluation of bridge residual displacements and associated traffic capacity by considering realistic traffic load scenarios. This research proposes a high-fidelity finite-element model for bridge columns, developed and calibrated using existing experimental data from the shake table tests of a full-scale bridge column. This finite-element model of the bridge column is further expanded to enable evaluation of the axial load-carrying capacity of damaged columns, which is critical for an accurate evaluation of the traffic capacity of the bridge. Existing experimental data from the crushing tests on the columns with earthquake-induced damage support this phase of the finite-element model development. To properly evaluate the bridge's post-earthquake functionality state, realistic traffic loadings representative of different bridge conditions (e.g., immediate access, emergency traffic only, closed) are applied in the proposed model following an earthquake simulation. The traffic loadings in the finite-element model consider the distribution of the vehicles on the bridge causing the largest forces in the bridge columns.
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EFFICIENCY OF DIFFERENT CONNECTIONS ON THE BEHAVIOUR OF COLD-FORMED SINGLE-ANGLE STEEL MEMBERS CONNECTED THROUGH ONE LEGUNDER AXIAL LOADING. The Hong Kong Institute of Steel Construction, wrzesień 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.10.

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A detailed experimental program was performed using 36 cold-formed steel (CFS) single-angle column members attached by one leg was investigated subjected to axial compression loads. The key purpose of this research is to investigate the effect of slenderness ratio and different connection types on the load-carrying capacity of CFS angle sections under axial compression. The parameters investigated via the test program includes (a) angle sections with and without lipped profile, (b) sectional thicknesses (2 mm and 3mm), (c) slenderness ratios (λ = 20, 50, 80) from short to slender columns, and (d) type of connections i.e. two-bolt, three-bolt and welded connections. Results shown that the angle sections had a significant reduction in the load-carrying capacity when the slenderness ratio was increased from 20 to 80. Moreover, the mode of failure for short columns was changed from local buckling mode to combined local and flexural buckling for intermediate columns (λ = 50) and torsional-flexural buckling mode for long columns (λ = 80). Also, a detailed analytical study was carried out comparing the predictability of existing equations from different standards for angle sections under axial compression.
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EXPERIMENTAL AND NUMERICAL INVESTIGATION ON SEISMIC PERFORMANCE OF RING-BEAM CONNECTION TO GANGUE CONCRETE FILLED STEEL TUBULAR COLUMNS. The Hong Kong Institute of Steel Construction, marzec 2022. http://dx.doi.org/10.18057/ijasc.2022.18.1.9.

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This paper presents an investigation on seismic performance of a ring-beam connection that is used to connect reinforced gangue concrete (RGC) beam to coal-gangue concrete-filled steel tubular (GCFST) column. Two specimens, including an interior connection with two beams and an exterior connection with one beam, were designed and fabricated for experimental tests under full-reversing cyclic loads at beam ends. In addition, finite element models which corresponded to tested specimens were developed using ABAQUS to conduct numerical simulations of the composite connection subjected to the combined axial and cyclic loads. The feasibility of the developed model to predict failure modes and load-deformation response of the connection was validated by comparing with test results. The response of the ring-beam connection to cyclic loads was examined with respects to the load-bearing capacity, deformation resistance, stiffness and strength degradation, ability to dissipate energy in a seismic event, and ductility. With numerical models, parametric analysis was completed to evaluate the influences of material and structural parameters on connection resistance against cyclic loads. Based on the results of parametric studies, a restoring force model of skeleton curve for the ring-beam connection was developed in terms of ultimate capacity and corresponding deformation. The results provided practical suggestions for the application of ring-beam connection to GCFST column in the projects.
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EXPERIMENTAL, NUMERICAL, AND THEORETICAL STUDY ON STATIC BEHAVIOUR OF NOVEL STEEL DOVETAIL JOINT SUBJECTED TO AXIAL TENSILE LOAD. The Hong Kong Institute of Steel Construction, marzec 2022. http://dx.doi.org/10.18057/ijasc.2022.18.1.4.

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In this study, two types of socket joints manufactured based on a simple design concept and bearing load principle are proposed. The design concept, design method, test program, and FE modelling method for a novel steel dovetail joint without teeth pattern (Interlock type I) and with teeth pattern (Interlock type II) are also discussed. In addition, the tests and numerical analyses of four specimens were conducted to investigate the bearing capacities and failure modes of the new joint systems under axial tensile loads. The test results indicated that the specimens with and without teeth patterns exhibited different tensile bearing capacities: the specimens with teeth patterns generated twice the tensile load capacity of those without teeth patterns. This result can be attributed to the fact that the interlock type-II specimens rely on the teeth pattern, edges of the hub keyway, and hub ring to bear the load, whereas interlock type-I specimens rely only rely on the edges of the hub keyway and hub rings. Further, the two types of specimens have the same failure modes when the beam-inserted end (tail) is pulled out of the hub keyway. In addition, shear failure occurs on the teeth pattern of the hub keyways and beam-inserted ends of the interlock type-II specimens. Two FE models are established to verify the results of the tests, and the related equations are derived and calculated. The results obtained from the numerical analysis using the equations were compared with the test results. Finally, it was concluded that the results obtained using the three analysis methods adopted in this study agree very well, with high calculation validity and efficiency.
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