Relevant bibliographies by topics / Elasto-plastic materials

Academic literature on the topic 'Elasto-plastic materials'

Author: Grafiati
Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Elasto-plastic materials"

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Jain, Appurva, and Abhishek Mishra. "Elastoplastic Damage Models for Ductile Materials." Advanced Science, Engineering and Medicine 12, no. 12 (December 1, 2020): 1556–59. http://dx.doi.org/10.1166/asem.2020.2715.

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The application of the Elasto plastic-damage model is used to describe the ductile fracture model. Few parameters are responsible for ductile damage and its mechanism can be revealed by using Elasto plastic models. An overview of different models is described in this paper. Parameters responsible for high-stress triaxiality and low-stress triaxiality are also described in this paper. The objective of this article is to provide a review of Elasto-plastic damage models, which can be used for prediction of ductile fracture. Stress triaxiality is the ratio between mean stress and equivalent vonmisses stress.
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Brovman, T. V. "Functional materials under elasto-plastic deformation." Journal of Physics: Conference Series 1758, no. 1 (January 1, 2021): 012004. http://dx.doi.org/10.1088/1742-6596/1758/1/012004.

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Maatouki, Ismail, Ralf Müller, and Dietmar Gross. "Material Forces in elasto-plastic Materials." PAMM 8, no. 1 (December 2008): 10441–42. http://dx.doi.org/10.1002/pamm.200810441.

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Krätzig, Wilfried B., and Rainer Pölling. "Elasto-plastic damage-theories and elasto-plastic fracturing-theories – a comparison." Computational Materials Science 13, no. 1-3 (December 1998): 117–31. http://dx.doi.org/10.1016/s0927-0256(98)00052-4.

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Peng, Fang-le, and Jian-zhong Li. "Elasto-plastic constitutive modeling for granular materials." Journal of Central South University of Technology 11, no. 4 (December 2004): 440–44. http://dx.doi.org/10.1007/s11771-004-0091-5.

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Attaporn, Wisessint, and Hideo Koguchi. "FEM Formulation and Analysis of Elasto-Plastic Stress Singularity." Key Engineering Materials 324-325 (November 2006): 915–18. http://dx.doi.org/10.4028/www.scientific.net/kem.324-325.915.

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The present study shows a new idea for investigating characteristics of stress singularity field around a vertex associated with elasto-plastic properties of materials. FEM formulation for elasto-plastic stress singularity analysis is expressed to investigate an eigenvalue and the intensity of singularity.The elasto-plastic stress singularity in a flip chip joint was investigated using the FEM formulation. After that, the possibility of delamination on the flip chip joint was discussed.
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Li, Xuanhe, Weicheng Huang, and M. Khalid Jawed. "Discrete Elasto-Plastic Rods." Extreme Mechanics Letters 38 (July 2020): 100767. http://dx.doi.org/10.1016/j.eml.2020.100767.

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Linder, David, Martin Walbrühl, John Ågren, and Annika Borgenstam. "Indentation behavior of highly confined elasto-plastic materials." International Journal of Solids and Structures 193-194 (June 2020): 69–78. http://dx.doi.org/10.1016/j.ijsolstr.2020.01.025.

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Rempler, Uwe, Wolfgang Ehlers, and Christian Wieners. "An Extended FE Formulation for Elasto-Plastic Materials." PAMM 6, no. 1 (December 2006): 759–60. http://dx.doi.org/10.1002/pamm.200610360.

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Zhang, Zheng, Geng Liu, and Tian Xiang Liu. "An Adaptive EFG-FE Computational Model for Thermal Elasto-Plastic Frictional Contact Problems." Advanced Materials Research 33-37 (March 2008): 821–26. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.821.

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An adaptive meshless element-free Galerkin-finite element (EFG-FE) coupling model for thermal elasto-plastic contact problems is developed to investigate the influences of the steady-state frictional heating on the contact performance of two contacting bodies. The thermal elasto-plastic contact problems using the initial stiffness method is presented. The local adaptive refinement strategy and the strain energy gradient-based error estimation for EFG-FE coupling method are combined. The adaptive meshless model takes into account the temperature variation, micro plastic flow, and the coupled thermo-elasto-plastic behavior of the materials, considering the strain-hardening property of the materials and temperature-dependent yield strength. The adaptive model is verified through the contact analysis of a cylinder with an elasto-plastic plane. The thermal effects on the contact pressure, stresses distributions with certain frictional heat inputs are studied. The results show that the accuracy of the solutions from the adaptive refinement model is satisfactory but the cost of the CPU time is much less than that for the uniform refinement calculation.
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Dissertations / Theses on the topic "Elasto-plastic materials"

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Li, Wei 1970 May 26. "Yield and geodesic properties of random elasto-plastic materials." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115877.

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Two topics, i.e., the scale effects and the geodesics of random heterogeneous materials will be discussed in this work.
When the separation of scales in random media does not hold, the representative volume element (RVE) of deterministic continuum mechanics does not exist in the conventional sense, and new concepts and approaches are needed. This subject is discussed here in the context of microstructures of two types - planar random chessboards, and planar random inclusion-matrix composites -- with microscale behavior being elastic-plastic-hardening (power-law). The microstructure is assumed to be spatially homogeneous and ergodic. Principal issues under consideration are those of yield and incipient plastic flow of statistical volume elements (SVE) on mesoscales, and the scaling trend of SVE to the RVE response on macroscale. Indeed, the SVE responses under uniform displacement (or traction) boundary conditions bound from above (respectively, below) the RVE response, and we show via extensive simulations in plane stress that the larger is the mesoscale, the tighter are both bounds. However, the mesoscale flows under both kinds of loading do not, in general, display normality. Also, with the limitation imposed by currently available computational resources, we do not recover normality (or even a trend towards it) when studying the largest possible SVE domains.
The second topic is the geodesic (i.e., shortest path) character of strain fields occurring in elasto-plastic response of planar inclusion-matrix composites. The composites' spatially random morphology is created by generating the disk centers through a sequential inhibition process based on a poisson point field in plane. Both phases (inclusions and matrix) are elastic-plastic-hardening with the matrix being more compliant and weaker than the inclusions, and perfect bonding everywhere. A quantitative comparison of a response pattern obtained by computational micromechanics with that found only by mathematical morphology indicates that (i) the regions of plastic flow are very close to geodesics, and (ii) a purely geometric, and orders of magnitude more rapid than by computational mechanics assessment of these regions is possible.
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Khdir, Younis Khalid. "Non-linear numerical homogenization : application to elasto-plastic materials." Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10023/document.

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Ce travail de thèse se veut une contribution à l’homogénéisation numérique des milieux élasto-plastiques hétérogènes aléatoires via des calculs sur des grands volumes. La thèse comporte deux parties principales. La première est dédiée à la réponse élasto-plastique macroscopique des composites, à distribution aléatoire de la seconde phase, sollicités en traction uniaxiale. La deuxième est focalisée sur la réponse macroscopique à la limite d’écoulement des milieux poreux aléatoires sur une large gamme de triaxialités. Dans la première partie, nous décrivons une méthode d’homogénéisation numérique pour estimer la réponse élasto-plastique macroscopique de milieux composites aléatoires à deux phases. La méthode est basée sur des simulations éléments finis utilisant des cellules cubiques tridimensionnelles de différentes tailles mais plus petites que le volume élémentaire représentatif de la microstructure. Dans une seconde partie, nous décrivons une étude d’homogénéisation numérique par éléments finis sur des cellules cubiques tridimensionnelles afin de prédire la surface d’écoulement macroscopique de milieux poreux aléatoires contenant une ou deux populations de vides. La représentativité des résultats est examinée en utilisant des cellules cubiques contenant des vides sphéroïdales, répartis et orientés aléatoirement. Les résultats numériques sont comparés à des critères d’écoulement existants de type Gurson
This PhD dissertation deals with the numerical homogenization of heterogeneous elastic-plastic random media via large volume computations. The dissertation is presented in two main parts. The first part is dedicated to the effective elastic-plastic response of random two-phase composites stretched under uniaxial loading. The second part is focused on the effective yield response of random porous media over a wide range of stress triaxialities. In the first part, we describe a computational homogenization methodology to estimate the effective elastic-plastic response of random two-phase composite media. The method is based on finite element simulations using three-dimensional cubic cells of different size but smaller than the deterministic representative volume element of the microstructure. In the second part, we describe using the finite element method a computational homogenization study of three-dimensional cubic cells in order to estimate the effective yield surface of random porous media containing one or two populations of voids. The representativity of the overall yield surface estimates is examined using cubic cells containing randomly distributed and oriented spheroidal voids. The computational results are compared with some existing Gurson-type yield criteria
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Kintzel, Olaf. "Modeling of elasto-plastic material behavior and ductile micropore damage of metallic materials at large deformations /." Bochum : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985340991.

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Lhotellier, Frederic C. "Matrix-fiber stress transfer in composite materials elasto-plastic model with an interphase layer." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/40934.

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The matrix-fiber stress transfer in glass/epoxy composite materials was studied using analytical and experimental methods. The mathematical model that was developed calculates the stress fields in the fiber, interphase, and neighboring matrix near a fiber break. This scheme takes into account the elastic-plastic behavior of both the matrix and the interphase, and it includes the treatment of stress concentration near the discontinuities of the fibers. The radius of the fibers and the mechanical properties of the matrix were varied in order to validate the mathematical model. The computed values for the lengths of debonding, plastic deformation, and elastic deformation in the matrix near the fiber tip were confirmed by measurements taken under polarized light on loaded and unloaded single fiber samples. The fiber-fiber interaction was studied experimentally using dog-bone samples that contained seven fibers forming an hexagonal pattern.


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Kintzel, Olaf [Verfasser]. "Modeling of elasto-plastic material behavior and ductile micropore damage of metallic materials at large deformations / Olaf Kintzel." Aachen : Shaker, 2007. http://d-nb.info/1166511863/34.

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Zangmeister, Tobias [Verfasser], and Ralf [Akademischer Betreuer] Müller. "On the Extended Finite Element Method for the Elasto-Plastic Deformation of Heterogeneous Materials / Tobias Zangmeister. Betreuer: Ralf Müller." Kaiserslautern : Technische Universität Kaiserslautern, 2015. http://d-nb.info/1064868894/34.

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Kintzel, Olaf [Verfasser], Günther [Gutachter] Meschke, Klaus [Gutachter] Hackl, and Mikhail [Gutachter] Itskov. "Modeling of elasto-plastic material behavior and ductile micropore damage of metallic materials at large deformations / Olaf Kintzel ; Gutachter: Günther Meschke, Klaus Hackl, Mikhail Itskov ; Fakultät für Bau- und Umweltingenieurwissenschaften." Bochum : Ruhr-Universität Bochum, 2007. http://d-nb.info/1231542071/34.

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Sotolongo, Wilfredo. "On the numerical implementation of cyclic elasto-plastic material models." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/17594.

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Werner, Todd C. "Elasto-Plastic Impact of a Cantilever Beam Using Non-Linear Finite Elements and Event Simulation." Youngstown State University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ysu997556281.

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Jakel, Roland. "Lineare und nichtlineare Analyse hochdynamischer Einschlagvorgänge mit Creo Simulate und Abaqus/Explicit." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-171812.

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Der Vortrag beschreibt wie sich mittels der unterschiedlichen Berechnungsverfahren zur Lösung dynamischer Strukturpobleme der Einschlag eines idealisierten Bruchstücks in eine Schutzwand berechnen lässt. Dies wird mittels zweier kommerzieller FEM-Programme beschrieben: a.) Creo Simulate nutzt zur Lösung die Methode der modalen Superposition, d.h., es können nur lineare dynamische Systeme mit rein modaler Dämpfung berechnet werden. Kontakt zwischen zwei Bauteilen lässt sich damit nicht erfassen. Die unbekannte Kraft-Zeit-Funktion des Einschlagvorganges muss also geeignet abgeschätzt und als äußere Last auf die Schutzwand aufgebracht werden. Je dynamischer der Einschlagvorgang, desto eher wird der Gültigkeitsbereich des zugrunde liegenden linearen Modells verlassen. b.) Abaqus/Explicit nutzt ein direktes Zeitintegrationsverfahren zur schrittweisen Lösung der zugrunde liegenden Differentialgleichung, die keine tangentiale Steifigkeitsmatrix benötigt. Damit können sowohl Materialnichtlinearitäten als auch Kontakt geeignet erfasst und damit die Kraft-Zeit-Funktion des Einschlages ermittelt werden. Auch bei extrem hochdynamischen Vorgängen liefert diese Methode ein gutes Ergebnis. Es müssen dafür jedoch weit mehr Werkstoffdaten bekannt sein, um das nichtlineare elasto-plastische Materialverhalten mit Schädigungseffekten korrekt zu beschreiben. Die Schwierigkeiten der Werkstoffdatenbestimmung werden in den Grundlagen erläutert
The presentation describes how to analyze the impact of an idealized fragment into a stell protective panel with different dynamic analysis methods. Two different commercial Finite Element codes are used for this: a.) Creo Simulate: This code uses the method of modal superposition for analyzing the dynamic response of linear dynamic systems. Therefore, only modal damping and no contact can be used. The unknown force-vs.-time curve of the impact event cannot be computed, but must be assumed and applied as external force to the steel protective panel. As more dynamic the impact, as sooner the range of validity of the underlying linear model is left. b.) Abaqus/Explicit: This code uses a direct integration method for an incremental (step by step) solution of the underlying differential equation, which does not need a tangential stiffness matrix. In this way, matieral nonlinearities as well as contact can be obtained as one result of the FEM analysis. Even for extremely high-dynamic impacts, good results can be obtained. But, the nonlinear elasto-plastic material behavior with damage initiation and damage evolution must be characterized with a lot of effort. The principal difficulties of the material characterization are described
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Books on the topic "Elasto-plastic materials"

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Palmov, Vladimir. Vibrations of Elasto-Plastic Bodies. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998.

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International Conference on Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials (2nd 1987 Munich, Germany). Low cycle fatigue and elasto-plastic behaviour of materials. London: Elsevier Applied Science, 1987.

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Rie, K. T., ed. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3459-7.

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Rie, K. T. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials. Dordrecht: Springer Netherlands, 1987.

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Rie, K. T., H. W. Grünling, G. König, P. Neumann, H. Nowack, K. H. Schwalbe, and T. Seeger, eds. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials—3. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2860-5.

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Rie, K. T. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials--3. Dordrecht: Springer Netherlands, 1992.

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Portella, P. D., and K. T. Rie. Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials. Elsevier Science & Technology Books, 1998.

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1936-, Rie K. T., Portella P. D, and International Conference on Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials (4th : 1998 : Garmisch-Partenkirchen, Germany), eds. Low cycle fatigue and elasto-plastic behaviour of materials. Amsterdam: Elsevier, 1998.

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Low cycle fatigue and elasto-plastic behaviour of materials--3. London: Elsevier Applied Science, 1992.

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Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials: Volume 3. Springer, 1992.

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Book chapters on the topic "Elasto-plastic materials"

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Palmov, Vladimir. "Random deformation of elastoplastic materials." In Vibrations of Elasto-Plastic Bodies, 155–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-540-69636-0_5.

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Palmov, Vladimir. "Plasticity theory and internal friction in materials." In Vibrations of Elasto-Plastic Bodies, 87–104. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-540-69636-0_2.

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Palmov, Vladimir. "Three-dimensional cyclic deformations of elastoplastic materials." In Vibrations of Elasto-Plastic Bodies, 105–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-540-69636-0_3.

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Tong, Rui Ting, Geng Liu, Quan Ren Zeng, and Tian Xiang Liu. "Thermal Elasto-Plastic Asperity Contacts of Layered Media." In Materials Science Forum, 721–24. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-421-9.721.

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Liu, Geng, Tian Xiang Liu, and Qin Xie. "Thermal Effects on Elasto-Plastic Contacts between Rough Surfaces." In Materials Science Forum, 801–4. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-421-9.801.

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Sasso, Marco, Fabrizio Sarasini, Edoardo Mancini, Attilio Lattanzi, Jacopo Tirillò, Claudia Sergi, and Emanuele Farotti. "Visco-Elasto-Plastic Characterization of PVC Foams." In Challenges in Mechanics of Time Dependent Materials, Volume 2, 75–81. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-59542-5_13.

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Cleja-Ţigoiu, Sanda. "Finite Elasto-Plastic Models for Lattice Defects in Crystalline Materials." In Advanced Structured Materials, 43–57. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3764-1_4.

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Mishuris, Gennady, Wiktoria Miszuris, Andreas Öchsner, and Andrea Piccolroaz. "Transmission Conditions for Thin Elasto-Plastic Pressure-Dependent Interphases." In Plasticity of Pressure-Sensitive Materials, 205–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40945-5_4.

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Chen, Jing Xi, Peng Zhen Ke, and Guang Zhang. "Slope Stability Analysis by Strength Reduction Elasto-Plastic FEM." In The Mechanical Behavior of Materials X, 625–28. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-440-5.625.

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Cleja-Ţigoiu, Sanda. "Anisotropic Damage in Elasto-plastic Materials with Structural Defects." In Multiscale Modelling in Sheet Metal Forming, 301–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44070-5_6.

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Conference papers on the topic "Elasto-plastic materials"

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Figueiredo, Fabio, Lavinia Borges, Fernando Rochinha, Glaucio H. Paulino, Marek-Jerzy Pindera, Robert H. Dodds, Fernando A. Rochinha, Eshan Dave, and Linfeng Chen. "Elasto-plastic stress analysis of thick-walled FGM pipes." In MULTISCALE AND FUNCTIONALLY GRADED MATERIALS 2006. AIP, 2008. http://dx.doi.org/10.1063/1.2896766.

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Xie, Qin, Geng Liu, Tianxiang Liu, Ruiting Tong, and Quanren Zeng. "Elasto-Plastic Asperity Contacts of Layered Media." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63812.

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An elasto-plastic asperity contact model for layered media is developed in the work reported in this paper to analyze the influences of coating-substrate materials on contact when yielding and the strain-hardening properties of materials are taken into account. The finite element method, the initial stiffness method and the mathematical programming technique are employed to solve the model. The von Mises yield criterion is used to determine the inception of plastic deformation. The effects of different layer thickness and different coating-substrate materials on the contact pressure, real area of contact, average gap of rough surface, and stresses in layer and substrate under the elastic-perfectly-plastic and the elasto-plastic contact conditions are numerically investigated and discussed.
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KAWASHIMA, KOICHIRO, and TOSHIHIRO ITO. "Snap-through buckling of arches in the elasto-plastic range." In 30th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/6.1989-1317.

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Quicksall, John J., Robert L. Jackson, and Itzhak Green. "Elasto-Plastic Hemispherical Contact Models for Various Mechanical Properties." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63239.

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This work uses the finite element technique to model the elasto-plastic deformation of a hemisphere contacting a rigid flat for various material properties typical of aluminum, bronze, copper, titanium and malleable cast iron. Additionally, this work conducted parametric FEM tests on a generic material in which the elastic modulus and Poisson’s ratio are varied independently while the yield strength is held constant. A larger spectrum of material properties are covered in this work than in most previous works. The results are compared to two previously formulated elasto-plastic models simulating the deformation of a hemisphere in contact with a rigid flat. Both of the previously formulated models use carbon steel mechanical properties to arrive at empirical formulations implied to pertain to various materials. While both models considered several carbon steels with varying yield strengths, they did not test materials with varying Poisson’s ratio or elastic modulus. The previously generated elasto-plastic models give fairly good predictions when compared to the FEM results for various material properties from the current work, except that one model produces more accurate predictions overall, especially at large deformations where other models neglect important trends due to decreases in “hardness” with increasing deformation.
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Stelescu, Maria Daniela, Daniela Ioana Constantin, Maria Sonmez, Laurentia Alexandrescu, Mihaela Nituica, and Mihai Georgescu. "Development of elasto-plastic eco-nano-materials for the footwear industry." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.iv.22.

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The paper refers to the obtaining of new types of eco-nano elasto-plastic materials with high-performance characteristics based on ethylene-propylene-terpolymer rubber (EPDM), high-density polyethylene (HDPE), plasticized starch and organically modified montmorillonite (OMMT). The new materials were obtained by the technique of dynamic vulcanization and melt intercalation in a Plasti-Corder Brabender internal mixer, at 80 rpm and a temperature of 170°C. The influence of using the OMMT type nanofiller and the plasticized starch filler on the characteristics was observed. The new materials have a melt flow index of over 12g/10 min at 180°C for a force of 10 kg, which allows injection processing - an ecological method of processing polymeric materials. The samples show very good physical-mechanical characteristics both in the normal state and after accelerated aging at 168 hours at 170°C (tensile strength over 16 N/ mm2, tear strength over 102 N/mm, hardness 55-59°ShD, elasticity over 30%, etc.). The materials show high values of abrasion resistance (below 30 mm3), and very good results for mass and volume variation after 22 hours at 23°C in: water, acids and concentrated bases. These characteristics are due both to the composition of the new materials and to the obtaining technology. For evaluating the structural modification, analysis of the FT-IR spectral of the samples was carried out. The new materials can be used in different fields such as: in the footwear industry (soles, heels and plates), safety equipment (boots, etc), obtaining gaskets, hoses, technical rubber products for cars etc.
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Taher, Bilal, Said Abboudi, and Rafic Youness. "Damage of Thermo-Elasto-Plastic Multimaterial Under Thermal Cycling Conditions." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68815.

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The increasing of the temperature in the multi-material solicited with thermal and mechanical charges leads to surpass the load of elastic constraint, so we have to apply the thermo-elasto-plastic behavior. The increasing need of structures having multiple functions orientates designers to combine materials in order to obtain, according to coupling scales, multi-materials structures. The lifetime of these structures represents a one of the main decisive element for offices and manufacturers studies. The results of this work should be added to the set of functional charges to obtain an optimal and final decision on the design of the product. In this study, a numerical analysis conducted by finite elements method of thermo-elasto-plastic behavior of these type of materials and their damage under thermal cyclic solicitations. The study is led in two dimensions (r, z) on a cylindrical material constituted of two layers (stainless steel, Steel), subjected to a variable heat flux at the internal surface and an exchange with the ambient at the external surface. Other faces are isolated. The sample is fixed in the axial direction and free in the radial direction. The damage model is based on the works of Lemaiˆtre and Chaboche. Numerical results are presented for periodic heat flux and for different thickness of the material. The study is concluded by optimizing of the thickness of materials according to the total lifetime caused by thermo-elasto-plastic effect.
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7

Sertse, Hamsasew, and Wenbin Yu. "Multiscale Elasto-Plastic and Failure Analysis of Metal Matrix Composite." In 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-0565.

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8

Liu, Geng, Tianxiang Liu, Qin Xie, and Fanghui Shi. "Thermal Elasto-Plastic Contact Model of Rough Surfaces." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63810.

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Abstract:
A thermal elasto-plastic contact model is developed in this paper to investigate the influences of steady-state frictional heating on the contact performance of surface asperities and subsurface stress fields. This model takes into account the asperity distortion caused by temperature variation in a tribological process, micro plastic flow of surface asperities, and the coupled thermo-elasto-plastic behavior of materials, with and without considering the strain-hardening property of the materials. The model is verified through the contact analysis between a rigid, isolated cylinder and a plane. Furthermore, the thermal effects on the contact pressure, real contact area, and average gap of rough surfaces in contact with different frictional coefficients and heat inputs under the thermal elasto-plastic contact conditions are studied.
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9

Jackson, Robert L., and Itzhak Green. "A Finite Element Study of Elasto-Plastic Hemispherical Contact." In STLE/ASME 2003 International Joint Tribology Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/2003-trib-0268.

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Abstract:
This work presents a finite element study of elasto-plastic hemispherical contact. The results are normalized such that they are valid for macro contacts (e.g., rolling element bearings) and micro contacts (e.g., asperity contact). The material is modeled as elastic-perfectly plastic. The numerical results are compared to other existing models of spherical contact, including the fully plastic case (known as the Abbott and Firestone model) and the perfectly elastic case (known as the Hertz contact). At the same interference, the area of contact is shown to be larger for the elasto-plastic model than that of the elastic model. It is also shown, that at the same interference, the load carrying capacity of the elasto-plastic modeled sphere is less than that for the Hertzian solution. This work finds that the fully plastic average contact pressure, or hardness, commonly approximated to be a constant factor (about three) times the yield strength, actually varies with the deformed contact geometry, which in turn is dependant upon the material properties (e.g., yield strength). The results are fit by empirical formulations for a wide range of interferences and materials for use in other applications.
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10

Chung, Peter, Kumar Tamma, and Raju Namburu. "Three-dimensional elasto-plastic heterogeneous media subjected to short transient loads." In 40th Structures, Structural Dynamics, and Materials Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-1239.

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Reports on the topic "Elasto-plastic materials"

1

D'Elia, Marta, Jorge L. Suzuki, Yongtao Zhou, and Mohsen Zayernouri. A THERMODYNAMICALLY CONSISTENT FRACTIONAL VISCO-ELASTO-PLASTIC MODEL WITH MEMORY- DEPENDENT DAMAGE FOR ANOMALOUS MATERIALS. Office of Scientific and Technical Information (OSTI), November 2019. http://dx.doi.org/10.2172/1575111.

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