Academic literature on the topic 'Viscoplastic deformation'
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Journal articles on the topic "Viscoplastic deformation"
Aleksandrov, A. S., T. V. Semenova, and N. P. Aleksandrova. "MATERIALS USED IN THE ROAD BASES: METHOD OF THE RESIDUAL DEFORMATIONS’ CALCULATION." Russian Automobile and Highway Industry Journal 16, no. 4 (September 8, 2019): 456–71. http://dx.doi.org/10.26518/2071-7296-2019-4-456-471.
Full textKosorukov, S. N. "Viscoplastic deformation of annular plates." Journal of Applied Mechanics and Technical Physics 26, no. 5 (1986): 746–51. http://dx.doi.org/10.1007/bf00915330.
Full textZhang, Yuqing, Fan Gu, Bjorn Birgisson, and Robert L. Lytton. "Viscoelasticplastic–Fracture Modeling of Asphalt Mixtures Under Monotonic and Repeated Loads." Transportation Research Record: Journal of the Transportation Research Board 2631, no. 1 (January 2017): 20–29. http://dx.doi.org/10.3141/2631-03.
Full textMiguel, M. Carmen, Alessandro Vespignani, Stefano Zapperi, Jérôme Weiss, and Jean-Robert Grasso. "Intermittent dislocation flow in viscoplastic deformation." Nature 410, no. 6829 (April 2001): 667–71. http://dx.doi.org/10.1038/35070524.
Full textPan, Wen-Fung. "Endochronic simulation for finite viscoplastic deformation." International Journal of Plasticity 13, no. 6-7 (January 1997): 571–86. http://dx.doi.org/10.1016/s0749-6419(97)00026-0.
Full textDrozdov, A. D. "Multi-cycle viscoplastic deformation of polypropylene." Computational Materials Science 50, no. 7 (May 2011): 1991–2000. http://dx.doi.org/10.1016/j.commatsci.2011.01.045.
Full textSong, Yongjun, Leitao Zhang, Huimin Yang, Jianxi Ren, and Yongxin Che. "Experimental Study on the Creep Behavior of Red Sandstone under Low Temperatures." Advances in Civil Engineering 2019 (October 9, 2019): 1–9. http://dx.doi.org/10.1155/2019/2328065.
Full textHeffes, M. J., and H. F. Nied. "Analysis of Interfacial Cracking in Flip Chip Packages With Viscoplastic Solder Deformation." Journal of Electronic Packaging 126, no. 1 (March 1, 2004): 135–41. http://dx.doi.org/10.1115/1.1649242.
Full textDörlich, Vanessa, Joachim Linn, Tobias Scheffer, and Stefan Diebels. "Towards Viscoplastic Constitutive Models for Cosserat Rods." Archive of Mechanical Engineering 63, no. 2 (June 1, 2016): 215–30. http://dx.doi.org/10.1515/meceng-2016-0012.
Full textWang, Jun, Yingjie Xu, Weihong Zhang, and Xuanchang Ren. "Thermomechanical Modeling of Amorphous Glassy Polymer Undergoing Large Viscoplastic Deformation: 3-Points Bending and Gas-Blow Forming." Polymers 11, no. 4 (April 10, 2019): 654. http://dx.doi.org/10.3390/polym11040654.
Full textDissertations / Theses on the topic "Viscoplastic deformation"
Tashman, Laith. "Microstructural viscoplastic continuum model for asphalt concrete." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/313.
Full textSHAHBODAGH, KHAN Babak. "Large Deformation Dynamic Analysis Method for Partially Saturated Elasto-Viscoplastic Soils." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/151955.
Full textFeng, Huaiping. "Multiphase Deformation Analysis of Elasto-viscoplastic Unsaturated Soil and Modeling of Bentonite." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/57266.
Full textKyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第13775号
工博第2879号
新制||工||1425(附属図書館)
25991
UT51-2008-C691
京都大学大学院工学研究科社会基盤工学専攻
(主査)教授 岡 二三生, 教授 松岡 俊文, 准教授 木元 小百合
学位規則第4条第1項該当
Mimura, Mamoru. "ELASTO-VISCOPLASTIC CONSTITUTIVE MODELING FOR CLAY AND DEFORMATION ANALYSIS OF SOFT CLAY FOUNDATION." Kyoto University, 1991. http://hdl.handle.net/2433/74590.
Full textBorges, RÃmulo Luiz. "Permanent deformation in asphalt mixtures from viscoplastic shift model and triaxial repeated load test." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13192.
Full textPermanent deformation or rutting is a major distress in asphalt pavements. To predict permanent deformation of asphalt mixtures the dynamic creep test is often used in laboratory, with the result presented in terms of the so called flow number. However, for this work it was performed the triaxial repeated permanent deformation load test, a confined test that better represents field conditions. The models that incorporate the flow number do not represent the main zone of the dynamic creep test result, denoted secondary region, in which the permanent deformation rate of growth is constant. In this work the Shift Model was used, which is a viscoplastic model that accesses the permanent deformation from the superposition principles, i.e., time-temperature superposition and time-stress superposition. Thus, the asphalt mixtures were tested under different loading conditions, temperature, load time and rest period, in order to assess three parameters of the test: parameter C, which indicates where the secondary region begins (parameter that governs the primary region of the test); the parameter α (alpha) is the slope of the secondary region; and the parameter B represents the level of permanent deformation of the secondary region. The results show that the TRLPD test is more severe than the conventional dynamic creep test. Nevertheless, the use of TRLPD test represents an advance in the understanding of the behavior of asphalt mixtures with respect to rutting performance, and has the advantage of allowing the use of results in computational simulations.
A deformaÃÃo permanente à um dos principais defeitos em pavimentos asfÃlticos. Para prever esta falha em revestimentos, por meio de ensaios laboratoriais, à frequentemente utilizado o ensaio de creep dinÃmico cujo resultado final à apresentado em termos do chamado flow number. No entanto, para este trabalho foi realizado o triaxial repeated load permanent deformation (TRLPD) test, que à um ensaio sob condiÃÃes de confinamento, a fim de melhor se aproximar das condiÃÃes encontradas em campo. Os modelos que incorporam o flow number nÃo representam a principal regiÃo de ensaio de creep dinÃmico, denominada regiÃo secundÃria, na qual o incremento de deformaÃÃo permanente cresce em valor constante. No presente trabalho utilizou-se o Shift Model, o qual à um modelo viscoplÃstico que avalia a deformaÃÃo permanente a partir da superposiÃÃo dos efeitos tempo-temperatura e tempo-tensÃo. Dessa forma, as misturas asfÃlticas foram testadas sob diferentes condiÃÃes de carregamento, temperatura, tempo de aplicaÃÃo de carga e perÃodo de repouso. Foram avaliados trÃs parÃmetros do ensaio em questÃo: o parÃmetro C, que fornece os dados de onde a regiÃo secundÃria se inicia (parÃmetro que governa a regiÃo primÃria do ensaio); o parÃmetro α (alfa), que à o aclive da regiÃo secundÃria; e o parÃmetro B, que representa o nÃvel de deformaÃÃo permanente da regiÃo secundÃria. Os resultados obtidos mostram que o ensaio TRLPD à mais severo do que o ensaio convencional de creep dinÃmico, porÃm considera-se que a utilizaÃÃo de ensaios confinados representa um avanÃo para o entendimento do comportamento das misturas asfÃlticas quanto à resistÃncia à deformaÃÃo permanente das mesmas, e este traz a vantagem de poder ser usado em simulaÃÃes computacionais.
Danielsson, Mats 1973. "Micromechanics, macromechanics and constitutive modeling of the elasto-viscoplastic deformation of rubber-toughened glassy polymers." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17608.
Full textIncludes bibliographical references (p. 251-258).
Glassy polymers, such as polystyrene (PS), poly(methyl methacrylate) (PMMA) and polycarbonate (PC), are common engineering polymers that have found uses in consumer products ranging from portable computers and optical lenses, to automotive components and appliance housings. PMMA and PS are typically considered to be brittle polymers, since they fail in a brittle manner under low triaxiality conditions, such as under uniaxial tension. Polycarbonate is considered to be a more ductile polymer than PMMA and PS, since it will deform plastically under uniaxial tension. However, PC does exhibit brittle behavior under certain loading conditions, such as low temperatures, high strain rates, or highly (tensile) triaxial stress states. A technique used for reducing the brittleness (increasing the fracture toughness) of glassy polymers is rubber-toughening. The technology of rubber-toughening, which involves blending a small volume fraction (5-20%) of rubber particles with the homopolymer, has been used commercially since the 1940s, and has been of major importance to the plastics industry. The technology of rubber-toughening is qualitatively well understood, but quantitative tools to study the material response are still at an early stage of development. The purpose of this thesis is to develop numerical tools to investigate the mechanical behavior of rubber-toughened glassy polymers, with emphasis on rubber-toughened PC. To this end, several tools are developed.
(cont.) Three-dimensional micromechanical models of the heterogeneous microstructure are developed to study the effects of particle volume fraction on the underlying elastic visco-plastic deformation mechanisms in the material, and how these mechanisms influence the macroscopic [continuum-level] response of the material. A continuum-level constitutive model is developed for the homogenized large-strain elastic-viscoplastic behavior of the material. The model is calibrated against micromechanical modeling results for rubber-toughened polycarbonate. The constitutive model is used to study boundary value problems such as notched tensile bars, where a multi-scale modeling approach enables assessment of failure due to local stress and strain levels in the material. The results are compared to experimental studies to establish correlations between the continuum-level response of the material, and observed failure mechanisms in the material.
by Mats Danielsson.
Ph.D.
Wen, Wei. "Simulation of large deformation response of polycrystals, deforming by slip and twinning, using the viscoplastic Ø-model." Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-00959709.
Full textSantos, Tiago dos. "Experimental characterization and constitutive modeling of viscoplastic effects in high strain-rate deformation of polycrystalline FCC metals." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/150625.
Full textThe present work aims at performing the experimental characterization and constitutive modeling associated with the mechanical behavior of polycrystalline FCC (Face Centered Cubic) metals when subjected to high strain-rate deformations. The material to be employed in the experiments is a commercially pure aluminum alloy: aluminum AA1050. Within the present investigation context, experiments are performed at room temperatures. The primary objective of the laboratory experiments is to assess the main constitutive features associated with the macroscopic mechanical behavior observed for FCC metals subjected to high strain-rate deformation processes: (i) strain-hardening; (ii) strain-rate-hardening; and (iii) instantaneous rate-sensitivity. In order to characterize each constitutive feature, experiments using equipments specifically devised to achieve the objectives are performed. The laboratory investigation consists of compression tests involving a wide strain-rate range, from quasi-static conditions to strain-rates of the order of 104 s−1. Experimental results together with micro and macroscopic experimental evidences available in the literature give support to the development of a elastic-viscoplastic model. The stress-strain formulation follows a semi-physical approach, in which inelastic variables and their evolution equations are qualitatively motivated by metallurgical considerations based on the storage and arrangement of dislocations. Although its simplified nature when compared to physically-based models, the proposed model is capable of representing separately each one of the constitutive features highlighted early In addition, in analogy to the stress-strain proposition, a model describing the material hardness evolution in terms of strain and strain-rate histories is also provided. Based on the obtained experimental results, the proposed elastic-viscoplastic and hardness evolution models are adjusted and then validated. The corresponding stress-strain numerical formulation is developed in a subsequent step. The approach as a whole is integrated into finite strain framework following a Total Lagrangian description. The procedure employed to solve nonlinear equilibrium problem follows an implicit incremental formulation implemented in the context of the finite element method. At a local level, an implicit integration scheme based on an exponential mapping is adopted. From linearization of return mapping equations, an analytical consistent tangent modulus is obtained. Both constitutive model and numerical approach are employed to simulated classical problems: a compression test involving homogeneous deformation and a compression test involving contact and frictional conditions. Numerical simulations evaluate the constitutive capabilities associated with the proposed model when predicting the structural behavior at high strain-rate loadings. Furthermore, numerical efficiency and robustness related to the present procedure are also assessed by means of convergence analysis. While the adopted experimental procedure gave fundamental evidences of the main macroscopic features inherent in the metallic material behavior when subjected to high strain-rate deformations, the analytical and numerical results demonstrated that the proposed constitutive model is able to suitably reproduce the observed behavior.
Srivastava, Vikas. "A large-deformation thermo-mechanically coupled elastic-viscoplastic theory for amorphous polymers : modeling of micro-scale forming and the shape memory phenomenon." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/57787.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 185-193).
Amorphous polymers are important engineering materials; however, their nonlinear, strongly temperature- and rate-dependent elastic-viscoplastic behavior is still not very well understood, and is modeled by existing constitutive theories with varying degrees of success. There is no generally agreed upon theory to model the large-deformation, thermo-mechanically coupled response of these materials in a temperature range which spans their glass transition temperature. Such a theory is crucial for the development of a numerical capability for the simulation and design of important polymer processing operations, and also for predicting the relationship between processing methods and the subsequent mechanical properties of polymeric products. We have developed a large-deformation thermo-mechanically coupled elastic-viscoplastic theory for thermoplastic amorphous polymers and shape memory polymers which spans their glass transition temperature. The theory has been specialized to represent the major features of the thermo-mechanical response of three technologically important thermoplastic amorphous polymers - a cyclo-olefin polymer (Zeonex-690R), polycarbonate, poly(methyl methacrylate) and a representative thermoset shape memory polymer - in a temperature range from room temperature to approximately 40 C above the glass transition temperature of each material, in a strain-rate range of ~ 10-4 to 101 s-1, and compressive true strains exceeding 100%. Our theory has been implemented in the finite element program ABAQUS. In order to validate the predictive capability of our constitutive theory, we have performed a variety of macro- and micro-scale validation experiments involving complex inhomogeneous deformations and thermal processing cycles. By comparing some key features, such as the experimentally-measured deformed shapes and the load-displacement curves from various validation experiments against corresponding results from numerical simulations, we show that our theory is capable of reasonably accurately reproducing the results obtained in the validation experiments.
by Vikas Srivastava.
Ph.D.
Diehl, Ted. "Modeling of elastic-viscoplastic behavior and its finite element implementation /." Online version of thesis, 1988. http://hdl.handle.net/1850/10461.
Full textBooks on the topic "Viscoplastic deformation"
Pandey, Ajay K. Finite element thermo-viscoplastic analysis of aerospace structures. Hampton, Va: NASA Langley Research Center, 1990.
Find full textInternational Symposium on Plasticity and Its Current Applications (6th 1997 Juneau, Alaska). Physics and mechanics of finite plastic and viscoplastic deformation: Proceedings of Plasticity '97 : the Sixth International Symposium on Plasticity and Its Current Applications. Fulton, Maryland: Neat Press, 1997.
Find full text1952-, Saleeb Atef F., Castelli Michael G, and United States. National Aeronautics and Space Administration., eds. A fully associative, nonisothermal, nonlinear kinematic, unified viscoplastic model for titanium alloys. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.
Find full textPramote, Dechaumphai, Thornton Earl A. 1936-, and Langley Research Center, eds. Finite element thermo-viscoplastic analysis of aerospace structures. Hampton, Va: NASA Langley Research Center, 1990.
Find full textPramote, Dechaumphai, Thornton Earl A. 1936-, and Langley Research Center, eds. Finite element thermo-viscoplastic analysis of aerospace structures. Hampton, Va: NASA Langley Research Center, 1990.
Find full textPramote, Dechaumphai, Thornton Earl A. 1936-, and Langley Research Center, eds. Finite element thermo-viscoplastic analysis of aerospace structures. Hampton, Va: NASA Langley Research Center, 1990.
Find full textBook chapters on the topic "Viscoplastic deformation"
Sansour, Carlo, and Franz G. Kollmann. "Large Deformation of Axisymmetric Viscoplastic Shells." In Computational Mechanics ’95, 1241–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_201.
Full textZhang, X. T., and R. C. Batra. "Shear Band Development in a Viscoplastic Cylinder." In Anisotropy and Localization of Plastic Deformation, 103–6. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_24.
Full textTomita, Yoshihiro, and Kenichi Hayashi. "Deformation Behavior in Elasto-Viscoplastic Polymeric Bars under Tension." In Anisotropy and Localization of Plastic Deformation, 524–27. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_122.
Full textAlber, Hans-Dieter. "Justification of Homogenized Models for Viscoplastic Bodies with Microstructure." In Deformation and Failure in Metallic Materials, 295–319. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-36564-8_12.
Full textMolinari, A. "Self-Consistent Modelling of Plastic and Viscoplastic Polycrystalline Materials." In Large Plastic Deformation of Crystalline Aggregates, 173–246. Vienna: Springer Vienna, 1997. http://dx.doi.org/10.1007/978-3-7091-2672-1_5.
Full textShao, J. F., M. Bederiat, and J. P. Henry. "Elasto-Viscoplastic Modelling of Porous Rock under High Confining Pressure." In Anisotropy and Localization of Plastic Deformation, 266–69. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_63.
Full textMolinari, Alain, and Yves M. Leroy. "On The Stability of Steady Shear Flows of Thermo-Viscoplastic Materials." In Anisotropy and Localization of Plastic Deformation, 69–72. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_16.
Full textOlschewski, J., R. Sievert, and A. Bertram. "Comparative Viscoplastic Fe-Calculations of a Notched Specimen under Cyclic Loadings." In Anisotropy and Localization of Plastic Deformation, 397–400. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_92.
Full textMihailescu-Suliciu, M., and I. Suliciu. "An Energetic Control on Numerical Instability for a Rate-Type Viscoplastic Oscillator." In Anisotropy and Localization of Plastic Deformation, 639–42. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_149.
Full textBruhns, O. T. "Some Remarks on the Concept of Viscoplastic Models of the Overstress-Type." In Anisotropy and Localization of Plastic Deformation, 381–84. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_88.
Full textConference papers on the topic "Viscoplastic deformation"
Tetambe, Ravi P., and Sunil S. Saigal. "Adaptive Large Deformation Viscoplastic Finite Element Analysis." In ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium collocated with the ASME 1995 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/cie1995-0747.
Full textFortov, V. E., A. V. Gavrikov, D. N. Goranskaya, A. S. Ivanov, O. F. Petrov, R. A. Timirkhanov, José Tito Mendonça, David P. Resendes, and Padma K. Shukla. "Viscoplastic Deformation of Crystal-like Dusty Plasma Structures." In MULTIFACETS OF DUSTRY PLASMAS: Fifth International Conference on the Physics of Dusty Plasmas. AIP, 2008. http://dx.doi.org/10.1063/1.2997255.
Full textChentanez, Nuttapong. "Real-time simulation of solids with large viscoplastic deformation." In SIGGRAPH '16: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2933540.2933552.
Full textHeffes, M. J., and H. F. Nied. "Analysis of Interface Cracking in Flip Chip Packages With Viscoplastic Solder Deformation." In ASME 2003 International Electronic Packaging Technical Conference and Exhibition. ASMEDC, 2003. http://dx.doi.org/10.1115/ipack2003-35346.
Full textLadani, Leila J., and A. Dasgupta. "Partitioned Cyclic Fatigue Damage Evolution Model for PB-Free Solder Materials." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/creep2007-26306.
Full textYang, X. J., C. L. Chow, and K. J. Lau. "A Unified Viscoplastic Fatigue Damage Model for 63Sn-37Pb Solder Alloy Under Cyclic Stress Control." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32862.
Full textNeilsen, Mike, Wei-Yang Lu, Bill Olsson, and Terry Hinnerichs. "A Viscoplastic Constitutive Model for Polyurethane Foams." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14551.
Full textZhang, Ran, Gang Zhao, Wei Wang, Xiaoxiao Du, and Mayi Guo. "NURBS-based Isogeometric Analysis for Small Deformation of Viscoplastic and Creep Problems." In CAD'20. CAD Solutions LLC, 2020. http://dx.doi.org/10.14733/cadconfp.2020.116-120.
Full textDienemann, Lara L., Anil Saigal, and Michael A. Zimmerman. "Elastic-Viscoplastic Mechanics of Lithium in a Standard Dry Room." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23894.
Full textHartl, Darren, George Chatzigeorgiou, and Dimitris Lagoudas. "Three-Dimensional Modeling of Rate-Dependent Deformation in Shape Memory Alloys at High Temperatures." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1468.
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