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Статті в журналах з теми "Stiffness under stresses"
Philippidis, T. P., and A. P. Vassilopoulos. "Stiffness Reduction of Composite Laminates under Combined Cyclic Stresses." Advanced Composites Letters 10, no. 3 (May 2001): 096369350101000. http://dx.doi.org/10.1177/096369350101000302.
Повний текст джерелаTopkaya, Cem, and Özer Zeybek. "Application of ring beam stiffness criterion for discretely supported shells under global shear and bending." Advances in Structural Engineering 21, no. 16 (February 20, 2018): 2404–15. http://dx.doi.org/10.1177/1369433218758476.
Повний текст джерелаPervan, Nedim, Elmedin Mešić, Adis J. Muminović, Muamer Delić, Enis Muratović, Mirsad Trobradović, and Vahidin Hadžiabdić. "Biomechanical Performance Analysis of the Monolateral External Fixation Devices with Steel and Composite Material Frames under the Impact of Axial Load." Applied Sciences 12, no. 2 (January 12, 2022): 722. http://dx.doi.org/10.3390/app12020722.
Повний текст джерелаHsu, Thomas T. C., and Mohamad Y. Mansour. "Stiffness, Ductility, and Energy Dissipation of RC Elements under Cyclic Shear." Earthquake Spectra 21, no. 4 (November 2005): 1093–112. http://dx.doi.org/10.1193/1.2044828.
Повний текст джерелаTerrell, Ronald G., Brady R. Cox, Kenneth H. Stokoe, John J. Allen, and Dwayne Lewis. "Field Evaluation of the Stiffness of Unbound Aggregate Base Layers in Inverted Flexible Pavements." Transportation Research Record: Journal of the Transportation Research Board 1837, no. 1 (January 2003): 50–60. http://dx.doi.org/10.3141/1837-06.
Повний текст джерелаShen, Jun Min, Yu Min Zhou, and Xiao Zhang. "Finite Element Analysis of Asphalt Overlays on Existing PCC Pavement under Heavy Traffic Loading." Advanced Materials Research 361-363 (October 2011): 1472–75. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.1472.
Повний текст джерелаTong, Li Li, Zhen Qing Wang, and Bao Hua Sun. "Numerical Simulation of Unidirectional Hoop Composite Laminates under Flexural Loads." Key Engineering Materials 334-335 (March 2007): 217–20. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.217.
Повний текст джерелаHe, Jun, Yu Qing Liu, Chen Zhao, Ai Rong Chen, and Teruhiko Yoda. "Mechanical Behavior of Composite Girder with Perfobond Shear Connector under Hogging Moment." Advanced Materials Research 446-449 (January 2012): 1046–53. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1046.
Повний текст джерелаLiu, Guangsheng, Xiaocong Yang, and Lijie Guo. "Stiffness Determination of Backfill-Rock Interface to Numerically Investigate Backfill Stress Distributions in Mine Stopes." Advances in Civil Engineering 2021 (October 19, 2021): 1–13. http://dx.doi.org/10.1155/2021/6460764.
Повний текст джерелаZhang, Peng, Dan Shen, and Shi Rong Li. "Analysis of Stress Distribution of Externally Pre-Stressed Beams under Transverse Loads." Applied Mechanics and Materials 166-169 (May 2012): 3065–70. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.3065.
Повний текст джерелаДисертації з теми "Stiffness under stresses"
Mohamed, Ahmed Abdeldayem. "Behavior, strength and flexural stiffness of circular concrete columns reinforced with FRP bars and spirals/hoops under eccentric loading." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11406.
Повний текст джерелаLa détérioration des structures en béton armé avec des barres d’armature d’acier peut être observée quotidiennement dans les régions à climat agressif. Le renforcement interne en polymères renforcés de fibres (PRF) a démontré sa faisabilité grâce à différents éléments structuraux en génie civil. Les lignes directrices actuelles pour les structures en béton armé de PRF en Amérique du Nord et en Europe n'ont pas encore gérées les sections soumises à des efforts axiaux excentrique, en raison du manque de recherches et d'expériences. Cette recherche permet d’augmenter la base de données expérimentales ainsi établir des analyses approfondies et des recommandations de conception pour les colonnes circulaires en béton armé complètement renforcées de PRF (barres et spirales). Des grandeur-nature colonnes ont été testées sous charge monotone avec différents niveaux d'excentricité. Les variables de test comprenaient le rapport excentricité / diamètre (e/D) ; le type de renfort (PRFV et PRFC comparativement à l’acier); la résistance du béton en compression; le taux d’armature longitudinal et transversal; et la configuration de l’armature de confinement. Tous les échantillons mesuraient 305 mm de diamètre et 1500 mm de hauteur. Les résultats des tests ont indiqué que les spécimens renforcés avec des PRF de verre ou des PRF de carbone atteignaient leur résistance maximale sans endommager les barres d’armature. Des deux types de renforcement, les spécimens de PRFCCFRP se comportaient de manière très similaire à leurs homologues en acier et atteignaient presque les mêmes résistances axiales. Cependant, les spécimens avec renforcement en PRFV ont présenté une rigidité réduite et des forces axiales nominales inférieures à celles de leurs homologues en acier ou en PRFC. Le mode de rupture des spécimens de PRFC et de PRFV a été dominé par l’écrasement du béton à de faibles niveaux d'excentricité (rapports e/D de 8,2% et 16,4%). Les résultats ont révélé que les barres de PRFV ont développé des niveaux élevés de déformations et de contraintes sur les faces en compression et en tension et, par conséquent, les spécimens de PRFVC pourraient supporter une charge axiale constante après la résistance ultime pendant un certain temps jusqu'à la limite de la rupture en compression du béton du noyau à des niveaux supérieurs d'excentricité (rapport e/D de 8,2% et 16,4%), ce qui contribue à retarder la dégradation. À ces niveaux, une rupture en tension a été initiée dans les spécimens de PRFV résultant à de grandes déformations axiales et latérales et des fissures du côté de la face en tension jusqu'à ce que la rupture en compression du béton. La rupture des spécimens de PRFC à des niveaux supérieurs d'excentricité (rapport e/D de 8,2% et 16,4%) a été caractérisé comme étant en compression du béton dans laquelle il s'est déroulé de manière moins fragile. D'autre part, cette recherche comprenait également différentes études pour analyser les résultats des tests, évaluer l'efficacité des barres d'armature et fournir des recommandations pour l'analyse et la conception. Il a donc été indiqué que les capacités axiales et de flexion des spécimens en PRF testées pourraient être raisonnablement prédites en utilisant une analyse en section plane, en utilisant les paramètres du bloc de contrainte rectangulaire équivalent (BCRE) donnés par l'ACI 440.1R-15 ou la CSA S806- 12. Toutes les prédictions ont sous-estimé la résistance réelle avec des niveaux de variabilité conservateur entre 1,05 et 1,25 pour les spécimens de PRFC et entre 1,20 et 1,40 pour les spécimens de PRFC. Ces niveaux ont été nettement réduits à des limites critiques dans les spécimens avec des bétons à haute résistance. Un examen approfondi a été effectué sur les paramètres du BCRE disponibles dans les normes et les directives de conception actuelles en acier et en PRF. Les expressions modifiées du BCRE fournies dans ACI 440.1R-15 et CSA S806-12 ont été développées. Les résultats indiquent une bonne corrélation entre les valeurs de résistance prédites et mesurées avec des niveaux accrus de conservatisme. La contribution de la résistance à la compression du renforcement en PRF a été soigneusement examinée et discutée. Le taux d’armature minimum de PRFV et de PRFC pour éviter la rupture de l'armature ont été largement examinés. Enfin, la rigidité en flexion (EI) des spécimens testés a été déterminée de manière analytique et comparée aux expressions disponibles dans la littérature en utilisant les réponses expérimentales et analytiques M-ψ. Les expressions modifiées de la rigidité en flexion EI apportées dans l’ACI 440.1R ont été développées et validées.
(12804799), Bruce Arthur Jordan. "Duration of load behaviour of an aligned strand wood composite (ASC)." Thesis, 1994. https://figshare.com/articles/thesis/Duration_of_load_behaviour_of_an_aligned_strand_wood_composite_ASC_/20010698.
Повний текст джерелаAn aligned strand, wood composite (ASC) material was subjected to a two year duration of load (DOL) study. The experimental work was conducted in Mt. Gambier South Australia from a purpose built shed housing 42 back to back (double) vertically oriented specimen test rigs in an atmosphere not controlled for temperature and relative humidity. A total of 244 specimens were tested in two population groups, each group divided into two subgroups. One subgroup each for short term static Modulus of Rupture (MOR) and Modulus of Elasticity (MOE), and the other for long term bending strength and stiffness under stresses varying from 0.4MOR to 0.9MOR.
Creep and creep - rupture observations were taken over a two year period providing an extensive database for the evaluation of DOL properties. Monte Carlo simulations were used to give confidence in the process of assigning MOR values to the long term specimens using a statistical matched distribution technique for long term strength evaluation.
Creep and creep - rupture responses for the ASC were similar in effect but fifty percent greater in magnitude than that predicted for solid seasoned timber by AS1720.1-1988, the Australian Timber Structures Code. Creep design multipliers, and long term strength design multipliers in both working stress and limit state design formats were derived for the ASC.
A limiting strain criterion was established for the ASC and was observed to be independent of time under load and applied stress intensity. A failure strain model was presented for the ASC in a form enabling the determination of a limiting deflection for flexural (beam) members at failure.
Chen, Hsin-I., and 陳欣儀. "Investigations on stiffness degradation behavior by undrained triaxial tests under different stress paths." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/uec7kn.
Повний текст джерела國立臺灣科技大學
營建工程系
99
Behaviors of high initial Young’s modulus and stiffness degradation were observed on Taipei silty clay, and were applied to the numerical analysis in excavations with advanced soil models. The analysis with consideration of high initial Young’s modulus and stiffness degradation under axial compression condition yields in better prediction results. However, stress paths in a real excavation are different for soil elements at different positions. Thus, the degradation behavior of stiffness for soils under different stress paths should be investigated. This study presented a series of CK0U (K0 consolidation and undrained shearing) unloading-reloading triaxial tests under three stress paths, i.e. AC (axial compression), AE (axial extension), and LC (lateral extension), with bender element tests. Test results demonstrated that both secant Young’s moduli and shear moduli degraded with the increase of strain and stress level. From results of AC and LE tests, stiffness degradation ratios for tested soil versus axial strains are unique (or stress path independent). Nevertheless, the degradation ratio versus the stress level is affected by the failure strain and dependent on stress paths.
Bewick, Robert P. "Shear Rupture of Massive Brittle Rock under Constant Normal Stress and Stiffness Boundary Conditions." Thesis, 2013. http://hdl.handle.net/1807/43475.
Повний текст джерелаZhang, D., J. Ye, and Dennis Lam. "Ply cracking and stiffness degradation in cross-ply laminates under biaxial extension, bending and thermal loading." 2006. http://hdl.handle.net/10454/5794.
Повний текст джерелаLam, Dennis, D. Zhang, and J. Ye. "Ply cracking and stiffness degradation in cross-ply laminates under biaxial extension, bending and thermal loading." 2005. http://hdl.handle.net/10454/5555.
Повний текст джерелаLAI, YU-LIN, and 賴昱霖. "Dynamic Stress Analysis and Multi-Objective Optimization Design of an On-Road Bicycle Frame Under Fatigue and Stiffness Test." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u7pkya.
Повний текст джерела國立高雄第一科技大學
機械與自動化工程系碩士班
105
The aim of this paper is to present an integrated procedure for the optimization of dimensions of an on-road bicycle frame under horizontal, vertical and pedaling fatigue test and stiffness simulation. The procedure is composed of uniform design of experiments, explicit dynamics finite element analysis, Kriging interpolation, compromise programming method. The experimental design is used to plan a set of experiments with multiple factors of bike frame size by uniform design. Then, the bicycle frame in each experiment is analyzed by ANSYS/Workbench to obtain the maximum stress and deformation value. Then, Kriging interpolation is applied to construct the surrogate model of permanent deformation, maximum stress and bicycle mass based on the input and output data of experiment simulations. In order to get minimize the mass, maximum stress and permanent deformation of bicycle frame at the same time. First, to compose the each target be a single objective function by compromise programming method with weighting factors. Then, the bicycle frame stiffness simulation and mass is used to find the best weighting factors. Finally, generalized reduced gradient algorithm combine GRG algorithm method applied to find the optimal solution of dimensions of bicycle frame under the goal of minimize the mass, maximum stress and permanent deformation. From result, after performing the optimization procedure presented in this paper, the improvement rate of the horizontal test of maximum von Mises stress is 2.12%, the vertical test of maximum von Mises stress is 6.73%, the pedal test of maximum von Mises stress is 1.97%, the stiffness of maximum deformation is 1.28%, the mass of bicycle is 3.81%. Generally, successful achieve multi object design of optimization and the lightweight and high strength design of the bicycle frame.
Книги з теми "Stiffness under stresses"
Luk'yanov, Mihail. Collection of problems in strength of materials. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/989326.
Повний текст джерелаЧастини книг з теми "Stiffness under stresses"
Xu, Guoping, Qingfei Huang, Shenyou Song, Hai Ji, Bin Deng, and Tian Song. "Research on Mechanical Properties of Steel Shell Concrete Immersed Tube Shear Connectors." In Advances in Frontier Research on Engineering Structures, 295–312. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_27.
Повний текст джерелаShepelenko, Ihor, Yuri Tsekhanov, Yakiv Nemyrovskyi, Pavlo Eremin, and Oleh Bevz. "Plasticity Studies During Deformation Under Conditions of Significant Negative Values of the Stiffness Coefficient of the Stress State." In New Technologies, Development and Application IV, 215–23. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75275-0_25.
Повний текст джерелаNewnham, Robert E. "Elasticity." In Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0015.
Повний текст джерелаYang, Jianhui, Wenchao Zhi, Xujun Tang, Qinting Wang, and Tom Cosgrove. "Comparison of Bond Properties Between ALWSCC and Steel Bars Based on Different Test Methods." In Advances in Transdisciplinary Engineering. IOS Press, 2021. http://dx.doi.org/10.3233/atde210143.
Повний текст джерелаMelhem, George Nadim. "Aerospace Fasteners: Use in Structural Applications." In Encyclopedia of Aluminum and Its Alloys. Boca Raton: CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000240.
Повний текст джерелаGomes Correia, A., L. Q. AnhDan, J. Koseki, and F. Tatsuoka. "Small strain stiffness under different isotropic and anisotropic stress conditions of two granular granite materials." In Advanced Laboratory Stress-Strain Testing of Geomaterials, 209–15. Routledge, 2018. http://dx.doi.org/10.1201/9781315136776-11.
Повний текст джерелаNewnham, Robert E. "Thermodynamic relationships." In Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0008.
Повний текст джерелаWang, Liangwen, Yangguang Kong, Tianyun He, Hongwei Hao, Ruolan Wang, Zhigang Zhang, and Weiwei Zhang. "Collision Simulation of Inner Brace Grasping Manipulator During Operation Based on Grasping Impact Velocity Variation." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220208.
Повний текст джерелаLi, Longping, Linfeng Wang, Xiaohan Zhou, Yunlu Bai, and Qiang Xu. "Study on Deformation Characteristics and Instability Failure Mode of New Suspended Diaphragm Wall Deep Excavation in Soil-Rock Strata." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220929.
Повний текст джерелаТези доповідей конференцій з теми "Stiffness under stresses"
Darji, P. H., and D. P. Vakharia. "Stiffness Optimization of Hollow Cylindrical Rolling Element Bearing." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71009.
Повний текст джерелаClark, Russell, Mohammed Shubaili, Ali Elawadi, Sarah Orton, and Ying Tian. "Time Dependent Strength and Stiffness of Shear Controlled Reinforced Concrete Beams under High Sustained Stresses." In Structures Congress 2020. Reston, VA: American Society of Civil Engineers, 2020. http://dx.doi.org/10.1061/9780784482896.005.
Повний текст джерелаBushmanov, Aleksandr, and D. Mel'nichenko. "MODELING OF SPOKE STIFFNESS FOR EXTERNAL FIXATION DEVICES." In XIV International Scientific Conference "System Analysis in Medicine". Far Eastern Scientific Center of Physiology and Pathology of Respiration, 2020. http://dx.doi.org/10.12737/conferencearticle_5fe01d9b7fe4e6.75478054.
Повний текст джерелаQiu, Chen, Ketao Zhang, Jing Shan Zhao, and Jian S. Dai. "Stiffness Design, Analysis and Validation of a Parallel-Mechanism Equivalent Suspension System." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46641.
Повний текст джерелаLin, Chen-Chi, and Clayton D. Mote. "The Criteria Predicting Wrinkling of Thin, Flat, Rectangular Webs." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0148.
Повний текст джерелаDOSHI, SAGAR M., PAUL D. SAMUEL, MOLLA A. ALI, ANDREW J. STACK, BAZLE Z. (GAMA) HAQUE, JOSEPH M. DEITZEL, and JOHN W. GILLESPIE, JR. "LOW VELOCITY IMPACT EXPERIMENTS OF S-2 GLASS-EPOXY COMPOSITES UNDER DIFFERENT ENVIRONMENTAL CONDITIONS." In Proceedings for the American Society for Composites-Thirty Seventh Technical Conference. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/asc37/36422.
Повний текст джерелаNaserkhaki, Sadegh, Jacob L. Jaremko, Greg Kawchuk, Samer Adeeb, and Marwan El-Rich. "Investigation of Lumbosacral Spine Anatomical Variation Effect on Load-Partitioning Under Follower Load Using Geometrically Personalized Finite Element Model." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40231.
Повний текст джерелаZand, Benjamin B. "Vehicle Load Distribution Under Timber Mats and Flexible Slab." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9599.
Повний текст джерелаLiao, Lijuan, and Toshiyuki Sawa. "Axisymmetric Analysis of Mechanical Properties of Bonded Shrink Fitted Joints Under Torsional Loads." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37214.
Повний текст джерелаGravett, Phillip W., and Robert E. deLaneuville. "Analysis and Results of an SCS-6/Ti-15-3 MMC Reinforced Ring Structure Under Internal Radial Loading." In ASME 1993 Design Technical Conferences. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/detc1993-0074.
Повний текст джерелаЗвіти організацій з теми "Stiffness under stresses"
FATIGUE TESTS OF COMPOSITE DECKS WITH MCL CONNECTORS. The Hong Kong Institute of Steel Construction, December 2022. http://dx.doi.org/10.18057/ijasc.2022.18.4.7.
Повний текст джерелаNUMERICAL INVESTIGATION ON CYCLIC BEHAVIOR OF RING-BEAM CONNECTION TO GANGUE CONCRETE FILLED STEEL TUBULAR COLUMNS. The Hong Kong Institute of Steel Construction, December 2021. http://dx.doi.org/10.18057/ijasc.2021.17.4.7.
Повний текст джерелаTHE SEISMIC PERFORMANCE OF DOUBLE TUBE BUCKLING RESTRAINED BRACE WITH CAST STEEL CONNECTORS. The Hong Kong Institute of Steel Construction, March 2022. http://dx.doi.org/10.18057/ijasc.2022.18.1.2.
Повний текст джерела