Bibliographies thématiques / Elasto-plastic plates

Littérature scientifique sur le sujet « Elasto-plastic plates »

Auteur : Grafiati
Publié le 14 mars 2023

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Articles de revues sur le sujet "Elasto-plastic plates"

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Papadopoulos, Panayiotis, et Robert L. Taylor. « Elasto-Plastic Analysis of Reissner-Mindlin Plates ». Applied Mechanics Reviews 43, no 5S (1 mai 1990) : S40—S50. http://dx.doi.org/10.1115/1.3120846.

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A finite element analysis of elasto-plastic Reissner-Mindlin plates is presented. The discrete field equations are derived from a nonlinear version of the Hu-Washizu variational principle. Associative plasticity, including linear hardening, is employed by means of a generalized von Mises-type yield function. A predictor/corrector scheme is used to integrate the plastic constitutive rate equations. Numerical simulations are conducted for a series of test problems to illustrate performance of the formulation.
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Kutt, Lembit M., et Maciej P. Bieniek. « Elasto‐Plastic Constitutive Equations of Stiffened Plates ». Journal of Engineering Mechanics 114, no 4 (novembre 1988) : 656–70. http://dx.doi.org/10.1061/(asce)0733-9399(1988)114:4(656).

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Çelik, Mehmet. « Elasto-plastic behavior of isotropic stepped plates ». Engineering Analysis with Boundary Elements 25, no 6 (juin 2001) : 455–60. http://dx.doi.org/10.1016/s0955-7997(01)00039-x.

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Yankelevsky, David Z. « Elasto-plastic blast response of rectangular plates ». International Journal of Impact Engineering 3, no 2 (janvier 1985) : 107–19. http://dx.doi.org/10.1016/0734-743x(85)90029-6.

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Tian, Yan-ping, et Yi-ming Fu. « Elasto-plastic postbuckling of damaged orthotropic plates ». Applied Mathematics and Mechanics 29, no 7 (juillet 2008) : 841–53. http://dx.doi.org/10.1007/s10483-008-0702-y.

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Chang, Wan-Shu, T. Krauthammer et E. Ventsel. « Elasto-Plastic Analysis of Corrugated-Core Sandwich Plates ». Mechanics of Advanced Materials and Structures 13, no 2 (mars 2006) : 151–60. http://dx.doi.org/10.1080/15376490500451767.

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Zhu, Bao, et Yingjian Cai. « Particle Size-Dependent Responses of Metal–Ceramic Functionally Graded Plates Under Low-Velocity Impact ». International Journal of Applied Mechanics 10, no 05 (juin 2018) : 1850056. http://dx.doi.org/10.1142/s1758825118500564.

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The analysis of impact response for metal–ceramic functionally graded materials is important for the design of advanced impact resistance structures in aerospace, nuclear and mechanical industries. Here, we propose a dislocation-based continuum model to analyze elasto-plastic deformation of metal–ceramic functionally graded plates under low-velocity impact. The dislocation-based continuum model explicitly accounts for strengthening effects due to geometrically necessary dislocations and plastic strain gradient in impact analysis of metal–ceramic functionally graded plates by combining Taylor dislocation model and Tamura–Tomota–Ozowa (TTO) model. In the dislocation-based model, we describe the effective linear elastic properties of the metal–ceramic functionally graded plates based on the Mori–Tanaka scheme. We show from finite element simulations that particle-size-dependent elasto-plastic properties play important roles in determining the impact behavior of metal–ceramic functionally graded plates and provide a good prediction of diameters of after-impact impression compared to experiments on SiC/Al functionally graded circular plates.
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Mars, Jamel, Lotfi Ben Said, Mondher Wali et Fakhreddine Dammak. « Elasto-Plastic Modeling of Low-Velocity Impact on Functionally Graded Circular Plates ». International Journal of Applied Mechanics 10, no 04 (mai 2018) : 1850038. http://dx.doi.org/10.1142/s1758825118500382.

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Low-velocity impact of elasto-plastic functionally graded material (FGM) plates is first investigated in this paper based on Mori–Tanaka model to underline micromechanics and locally determine the effective FGM properties and self-consistent method of Suquet for the homogenization of the stress-field. The elasto-plastic behavior of the particle reinforced metal matrix FGM plate is assumed to follow Ludwik hardening law. An incremental formulation of the elasto-plastic constitutive relation is developed to predict the tangent operator. The homogenization formulation and numerical algorithms are implemented into ABAQUS/Standard via a user material subroutine (UMAT) and USDFLD subroutine. The effect of the power-law index on low-velocity impact parameters like contact force, deflection, permanent indentation, velocity distribution and the kinetic energy are examined using the proposed method. With the aim of demonstrating the accuracy and efficiency of the present method, current numerical results are compared to experimental and theoretical results from the literature and show very good agreement.
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Arslan, Nurettin, et Mehmet Çelik. « Thermoplastic Matrix Plates in Elasto-Plastic Finite Element Analysis ». Journal of Reinforced Plastics and Composites 20, no 14 (15 septembre 2001) : 1191–204. http://dx.doi.org/10.1177/073168401772679156.

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Arslan, Nurettin, et Mehmet Çelik. « Thermoplastic Matrix Plates in Elasto-Plastic Finite Element Analysis ». Journal of Reinforced Plastics and Composites 20, no 14-15 (septembre 2001) : 1191–204. http://dx.doi.org/10.1106/6e0j-fk70-a7j4-hgln.

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Thèses sur le sujet "Elasto-plastic plates"

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Salehi, Manouchehr. « Elasto-plastic large deflection response of radially stiffened circular, sector and annular sector plates ». Thesis, Lancaster University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306022.

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Drinali, Hayat. « Full-range axisymmetric elasto-plastic large deflection of circular and annular plates under transverse, in-plane and combined loading ». Thesis, Lancaster University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254094.

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Jacquet, Nicolas. « Elasto-visco-plastic buckling of thick shells ». Thesis, Lyon, 2021. http://www.theses.fr/2021LYSEI005.

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Le sujet de thèse traite du flambage de structure épaisses dont le comportement est élasto-visco-plastique. Un modèle prédictif a été développé. Ce dernier a été confronté à des résultats expérimentaux. Deux campagnes d’essais ont été menées afin de générer un jeu de données expérimentales suffisant. Lors de ces campagnes, le flambage de deux structures a été évalué. L’une portait sur le flambage de plaques en compression, l’autre sur le flambage de demi-oeufs soumis à une pression externe. Les essais ont été instrumentés par des moyens optiques afin de mesure la déformation de certaines zones des éprouvettes. Ce type d’instrumentation a permis d’améliorer le poste traitement et la validation du modèle prédictif. Une bonne corrélation entre le modèle prédictif et les essais a été observée. Ce niveau de corrélation porte aussi bien sur les efforts et temps critiques de flambage que sur les modes de flambage observés. Le modèle développé permet alors de prédire le flambage de structures épaisses dont le comportement est élasto-visco-plastique. De plus il est appliqué à des chargements non proportionnels. Ce modèle donne de très bon résultats moyennant le respect de certaines hypothèses discutées dans le mémoire de thèse
This thesis investigates the elasto-visco-plastic buckling of thick shell structures. Methods to estimate the buckling of thin elasto-visco-plastic shells are proposed in literature. Nevertheless, only few works present experimental results, and none treat experimental elasto-visco-plastic thick shell buckling. A modelling / experimental approach is followed to solve such problem. A buckling prediction model based on Bodner's approach is coupled to the corner theory to predict buckling of elasto-visco-plastic shells. This model should be applicable to predict the buckling of thick elasto-visco-plastic shells subjected to non-proportional loading. Bifurcation analysis were performed to estimate buckling critical stresses, strains and times, and buckling modes. The validity and the limitation of the buckling prediction method was discussed. Effect of geometrical and loading imperfections on buckling behaviour were also discussed. Two test campaigns were performed on two different thick shell geometries. The specimens were manufactured from an alloy with an elasto-visco-plastic behaviour at room temperature. The first buckling test campaign was performed on thick plates subjected to a uniaxial compressive loading and the second one on thick hemi-egg shells subjected to external pressure. 3D digital image correlation was used to measure displacement fields on specimen surfaces during buckling experiments. It is also used in order to extract and investigate the evolution of the buckling modes. The experiments were also modelled through finite element models. A good correlation between the buckling predictions and the experiments was observed. The good correlation was noticed on both critical values and buckling modes
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Duxbury, Paul Gerrard. « Solution of elasto-plastic plate and shell problems using the generalized Galerkin method ». Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47041.

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Helbig, Daniel. « Estudo numérico de placas finas de aço com perfuração, submetidas à flambagem elástica e elasto-plástica, aplicando-se o método Design Construtal ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/153339.

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Elementos estruturais como as placas finas fazem parte de um grande número de aplicações nas mais diversas áreas da engenharia e são de grande importância para a engenharia naval e aeronáutica, na construção de cascos de embarcações e estruturas offshore, e na construção de fuselagens de aviões. Por constituírem-se em um elemento estrutural esbelto, estão sujeitas a um comportamento mecânico diferenciado denominado de flambagem, proveniente de um carregamento de compressão uniaxial. O fenômeno da flambagem pode ser dividido em flambagem elástica e elasto-plástica, sendo dependente de aspectos dimensionais, construtivos e/ou operacionais. A inclusão de perfurações em placas provoca uma redistribuição de suas tensões internas, afetando não apenas a sua resistência, mas também as suas características de flambagem. Neste trabalho, desenvolveu-se a análise do comportamento mecânico de placas finas perfuradas de aço, simplesmente apoiadas em suas bordas, e submetidas à compressão. Serão analisados dois graus de liberdade: H/L e H0/L0. Para H/L, serão analisadas placas com H/L = 1,00 e H/L = 0,50, sendo que H e L representam, respectivamente, a largura e o comprimento da placa. Para H0/L0, serão analisadas infinitas possibilidades, sendo que H0 e L0 representam, respectivamente, a largura e o comprimento da perfuração. As placas utilizadas possuem espessura (h) de 10,00 mm e perfuração centralizada. Quanto às perfurações, estas serão dos tipos: oblonga longitudinal, oblonga transversal, elíptica, retangular, losangular, hexagonal longitudinal e hexagonal transversal. Ainda em relação às perfurações, serão consideradas as seguintes frações ϕ = 0,08; 0,10; 0,15; 0,20 e 0,25, sendo que (ϕ) corresponde ao volume da perfuração. Para a determinação das cargas crítica e última de flambagem, foi utilizada a simulação numérica com o auxílio do software Ansys®, que é baseado no método dos elementos finitos. A aplicação do método Design Construtal, possibilitou a determinação das geometrias ótimas para todos os tipos de perfurações, todos os valores de (ϕ) e para todas as relações de H/L. Os resultados obtidos mostram que há influência do tipo, da forma e do tamanho da perfuração na definição das curvas limites à flambagem e das curvas à flambagem elasto-plástica. Foi possível definir, para cada tipo de perfuração e para todos os valores de (ϕ), os pontos de transição entre a flambagem elástica e à elasto-plástica, assim como os pontos que definem os valores máximos para o fator TLNMáx (tensão limite normalizadora).
Structural elements such as thin plates are part of a large number of applications in various areas of engineering and are of great importance for marine and aerospace engineering, construction and offshore structures hulls, and the construction of airplane fuselages. Being a slender structural element, they are subject to a different mechanical behavior known as buckling, caused by a compressive loading. The phenomenon of buckling can be divided in elastic and elasto-plastic buckling, being dependent dimensional, construction and / or operational aspects. The inclusion of perforations in plates causes a redistribution of its internal stress, affecting not only their resistance but also their buckling characteristics. In this work it was performed the analysis of the mechanical behavior of thin perforated steel plates, simply supported on its edges, and subjected to compression. In the analysis it was considered two degrees of freedom: H/L and H0/L0. For H/L will be analyzed plates with H/L = 1.00 and H/L = 0.50, wherein H and L represent respectively the width and length of the plate. There are endless possibilities for the relation H0/L0. The studied plates have a thickness (h) of 10.00 mm and centralized perforation. The following types of perforation will be used: longitudinal oblong, transverse oblong, elliptical, rectangular, diamond, longitudinal hexagonal and transverse hexagonal. Also in relation to perforations, it will be considered the following fractions (ϕ = 0.08; 0.10; 0.15; 0.20 and 0.25), wherein (ϕ) corresponds to the volume ratio of the perforation. For determining the critical and ultimate buckling loads it was utilized numerical simulation with the assistance of Ansys® software, which is based on the finite element method. The application of the Constructal Design method of this study made it possible to determine the optimal geometries for all types of perforations, for all values of (ϕ) and all the relations H/L. The results show that there is an influence of the perforation type, shape and size, in defining the limit curves of the buckling and the curves of the elasto-plastic buckling. It was also possible to define, for each type of perforation and for all (ϕ) values, the transition points between elastic and elasto-plastic buckling; as well as the points that define the maximum values for the TLNMáx factor (normalized limit stress).
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Lin, Jen-Ching, et 林振清. « Elasto-plastic postbuckling analysis of the laminated composite plates ». Thesis, 1993. http://ndltd.ncl.edu.tw/handle/43341056891632703759.

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Eareckson, Peter Dudley. « Elasto-plastic analysis of axisymmetrically loaded circular plates using Green's functions ». Thesis, 1986. http://hdl.handle.net/10945/21820.

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賴凱弘. « Elasto-plastic deformation of an impact head on laminated plates with damage ». Thesis, 1997. http://ndltd.ncl.edu.tw/handle/19898368622446177621.

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Chen, C. C., et 陳慶棋. « Displacement Identification of Torch Heated Plate Structure Using Thermo-Elasto-Plastic Strip Model ». Thesis, 2000. http://ndltd.ncl.edu.tw/handle/67523541084673789813.

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碩士
國立成功大學
航空太空工程學系
88
The purpose of the thesis is to study the thermo-elasto-plastic deformation response of a steel plate subject to hot working forming process. In order to reduce a large amount of time to compute thermo elastro-plastic problem, we utilize a simplified model to relate heating effect into the equivalent shrinkage force and bending moment, then take finite element method (FEM) to solve the deflection of plate. There are two parameters of the model needed to be identified, we adopt genetic algorithms (GAs) to search the optimal parameters on the basis of experiment’s result. For seeking the parameters, we construct and combine finite element program and GAs program, then use numerical simulation to test the robust of GAs and induce the application range of GAs subject to thermo elasti-plastic model. We conclude that it exists 29% error compared with experiment’s result. GAs is a time-consuming optimization tool. In order to decrease computational time, we introduce the method of effective stiffness and effective load and prove its validity when performing FEM in GAs.
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Livres sur le sujet "Elasto-plastic plates"

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M, Paulekar Y., et Bhabha Atomic Research Centre, dir. Elasto-plastic damper for passive control of seismic response of piping systems. Mumbai : Bhabha Atomic Research Centre, 2003.

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Voyiadjis, George Z., et Pawel Woelke. Elasto-Plastic and Damage Analysis of Plates and Shells. Springer Berlin / Heidelberg, 2010.

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Voyiadjis, George Z., et Pawel Woelke. Elasto-Plastic and Damage Analysis of Plates and Shells. Springer London, Limited, 2008.

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George, Z. Voyiadjis Pawel Woelke. Elasto-Plastic and Damage Analysis of Plates and Shells. Springer, 2008.

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Elasto-Plastic and Damage Analysis of Plates and Shells. Berlin, Heidelberg : Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-79351-9.

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Eareckson, Peter Dudley. Elasto-plastic analysis of axisymmetrically loaded circular plates using Green's functions. 1986.

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Rimrott, R. A. Elasto-plastic analysis of beams and plates by the finite element method. 1987.

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Chapitres de livres sur le sujet "Elasto-plastic plates"

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Pavilainen, Galina. « Elasto-plastic deformations of ribbed plates ». Dans Asymptotic Methods in Mechanics, 227–33. Providence, Rhode Island : American Mathematical Society, 1993. http://dx.doi.org/10.1090/crmp/003/16.

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Huang, Hou-Cheng. « Formulations and Applications for Elasto-Plastic Shell Analyses ». Dans Static and Dynamic Analyses of Plates and Shells, 103–14. London : Springer London, 1989. http://dx.doi.org/10.1007/978-1-4471-1669-1_8.

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Wunderlich, W., et H. Springer. « On Theories of Elasto-Plastic Shells in Mixed Tensor Formulation ». Dans Inelastic Behaviour of Plates and Shells, 487–504. Berlin, Heidelberg : Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82776-1_25.

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Huang, Hou-Cheng. « Formulations and Applications for Elasto-Plastic Dynamic Shell Analyses ». Dans Static and Dynamic Analyses of Plates and Shells, 115–29. London : Springer London, 1989. http://dx.doi.org/10.1007/978-1-4471-1669-1_9.

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Cyras, A., et A. Daniunas. « Mathematical Models for the Analysis and Optimization of Elasto-plastic Plates and Shells Under Complete Plastic Failure ». Dans Inelastic Behaviour of Plates and Shells, 345–56. Berlin, Heidelberg : Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82776-1_17.

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Gelin, J. C., et L. Boubakar. « Large elasto-plastic deformations of thin shells with application to the stamping of anisotropic sheet metal parts ». Dans Plates and Shells, 171–83. Providence, Rhode Island : American Mathematical Society, 1999. http://dx.doi.org/10.1090/crmp/021/11.

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Kleiber, Michal, Maciej Taczała et Ryszard Buczkowski. « Elasto-Plastic Response of Thick Plates Built in Functionally Graded Material Using the Third Order Plate Theory ». Dans Computational Methods in Applied Sciences, 185–99. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60885-3_9.

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Harada, Shoji, Tatsuo Endo et Yoshihiro Fukushima. « Microcrack Growth Law-Aided Approach in Evaluating Low-Cycle Fatigue Strength and Its Application — Directionality Assessment of Thick Forged Steel Plates(A533b Cl 1) and Prediction of the Microcrack Propagation Life of a Medium Carbon Steel Under Variable Strain Amplitudes ». Dans Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials, 581–87. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3459-7_90.

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da Silveira, Thiago, João Pedro Sarasol Neufeld, Luiz Alberto Oliveira Rocha, Elizaldo Domingues dos Santos et Liércio André Isoldi. « Constructal Design Applied to Biaxial Elasto-Plastic Buckling Analysis of Square Steel Plates with Cutout ». Dans Structural Integrity, 313–19. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-91847-7_29.

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Naruse, Yoshiaki, Masato Kim, Rikuto Umezawa, Kinya Ishibashi, Hiroyuki Koyama, Tetsuo Okada et Yasumi Kawamura. « Scantling Evaluations of Plates and Stiffeners Based on Elasto-Plastic Analysis Under Axial Loads and Lateral Pressures ». Dans Lecture Notes in Civil Engineering, 100–127. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4672-3_6.

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Actes de conférences sur le sujet "Elasto-plastic plates"

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Sitaram, Pattabhi, Bipin Pai et Rachel Mok. « Elasto-Plastic Analysis of Prismatic Folded Plates by the Finite Element Method ». Dans ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88195.

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Folded plate structures are used for roofing large column-free areas for auditoriums, supermarkets, gymnasiums, hangars for aircraft, and other similar applications. The loads on these structures could cause stresses to go beyond the elastic range. Therefore, a thorough understanding of their elasto-plastic behavior is of utmost importance in designing these structures. An attempt is made to study the elasto-plastic behavior of prismatic metal folded plates by the finite element method using the commercial software, ANSYS. The method is first validated by analyzing typical plates and shells, and comparing them with available solutions in the literature. The elasto-plastic behavior of some prismatic folded plates is then studied, and their force-deflection responses and evolution of plastic zones are evaluated.
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Arslan, Nurettin, Erol Sancaktar et Mehmet Celik. « Elasto-Plastic Behavior of Thermoplastic Matrix Roller Chain Link Plates Reinforced With Steel Fibers ». Dans ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/rsafp-14482.

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Abstract The elastic and elasto-plastic stress analysis of thermoplastic matrix roller chain link plates reinforced with steel fibers is performed by using Finite Elements Analysis (FEA). A two-dimensional finite element computer program is developed for elasto-plastic stress analysis. Isoparametric quadratic element with four nodes is used with Lagrange polynomial as an interpolation function. The results of elastic and elasto-plastic finite element stress analysis by using the computer program prepared, are compared with experimental, (photoelastic) results. The spreads of the plastic zones due to the external load applied on the pin-hole of the plate and variations of the residual stresses are determined in different orientation angles and loads. It is shown that the geometry of the link plates can be designed to decrease the stress concentrations. Furthermore, it is shown that the tensile load limit of the roller chain link plate is extended by the residual stresses.
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Jacquet, Nicolas, Nicolas Tardif, Thomas Elguedj et Christophe Garnier. « Elasto-Visco-Plastic Buckling of Thick Anisotropic Shells : Numerical Buckling Predictions and Experiments ». Dans ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21491.

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Abstract This work is focused on elasto-visco-plastic (EVP) buckling of thick shell structures. In particular we are interested in predicting accurately the buckling risk of stainless steel components of nuclear fast sodium reactor working under high pressure and at high temperature (around 180 bar and 500 °C). We follow a modeling/experimental approach to solve this problem. The set-up of relevant experiments at such high temperature being complex, we work with a representative material that shows similar EVP and buckling behavior at room temperature. The representative material is an alloy mostly composed of tin, silver and copper, commonly named Sn 3.0 Ag 0.5 Cu. The elasto-visco-plastic constitutive model of the material was first characterized using tensile tests on notched specimen at room temperature under various strain rates, and the model parameters identified using finite element model updating (FEMU). In a second step we performed in plane compressive buckling tests of thick plates for various displacement rates. Surface 3D displacements were acquired using three cameras and digital image correlation. It is well known for thick plates that linearized tangent moduli derived from Levy-Mises flow theory does not give accurate elasto-plastic buckling prediction. Linearized tangent moduli derived from Hencky’s deformation theory gives more accurate buckling prediction for thick plates. This numerical phenomenon known as buckling paradox was well correlated to experiments in the literature. This paradox is applied here to thick plates, with EVP constitutive model, in order to predict buckling. Finally, finite element (FE) modeling of the buckling experiments was performed. Plates are modeled using SHB8PS solid shell elements. Solid shell elements allow direct displacement correlation with experiments and accurate through the thickness behavior with a 3D material model. The numerical modeling includes real plate geometry obtained using post machining measurements, experimental boundary conditions derived from the DIC (Digital Image Correlation) results and the previously identified constitutive material law. Buckling risk is tested at each loading step of the incremental algorithm using the tangent operator derived with the Hencky’s deformation theory. Numerical results show a very good correlation with the experimental results on load and displacement history as well as buckling critical load and buckling mode.
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Arslan, Nurettin, Aydın Turgut et Erol Sancaktar. « Elasto-Plastic Finite Element Stress Analysis of Thermoplastic-Matrix Symmetric Cross-Ply Plates With Square Hole ». Dans ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2456.

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Abstract In this study, elasto-plastic stress analysis of symmetric cross-ply reinforced thermoplastic (PVC) matrix composite laminated plates with square hole is presented. A two-dimensional computer program is developed for elasto-plastic stress analysis of laminated plates by FEM. The thermoplastic matrix is reinforced using long stainless steel fibers. The composite plates are manufactured by using molds under the action of 2 MPa pressure, and heating up to 200 °C. The laminated plate with square hole consists of four reinforced layers bonded symmetrically in ([θ/-θ]2) cross-ply configuration. A first–order shear deformation theory, and nine node Lagrangian finite element method are used in analysis. The applied in-plane load, and the layer orientation angle are varied to obtain the corresponding variation of residual stresses, and the expansions of plastic regions for various cases.
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Zhong, W. F., et Y. Y. Huang. « Elasto-Plastic Analysis of Anisotropic Plates and Shells With Moderate Thickness by FEM ». Dans 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/detc1995-0631.

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Abstract A numerical analysis of anisotropic plates and shells with moderate thickness is dealt with in this paper by using elasto-plastic finite element method. The Huber-Mises yield surface extended by Hill and the nine-node Heterosis element are introduced into the present model. In order to increase the computational accuracy and the speed of convergence an improving arc-length iteration method for solving nonlinear increment finite element equations is presented. Numerical examples are given and compared with available solutions. It is shown that the proposed method is more efficient than existing finite element method.
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Abhay, Bambole, et Desai Yogesh. « Three-Dimensional Elasto-Plastic Analysis Of Thick Laminated Composite Plates Using Hybrid-Interface Elements ». Dans The Seventh International Structural Engineering and Construction Conference. Singapore : Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-5354-2_st-123-373.

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Okumuş, Fuat, Aydın Turgut et Erol Sancaktar. « Elasto-Plastic Finite Element Analysis of Metal-Matrix Composite Plates With Hole Under Plane Loading ». Dans ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1182.

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Abstract The elasto-plastic stress analysis of composite plates with hole has been carried out by the finite element method. For this purpose, an isoparametric rectangular element with nine nodes has been chosen and the lagrange polynomial has been used as interpolation function. Steel-aluminum composite has been manufactured by using mould under the action of 30 MPa pressure and heating up to 600 °C. Mechanical properties and yield strength of the composite material have been obtained experimentally by using a strain gauge in the tensile testing machine. The composite plates in various dimensions have been. obtained by changing the diameter of the hole. The various tension loads which are increased step by step from beginning of the yield have been applied to these plates. The expansions of plastic regions have been illustrated for various cases. According to orientation angle and applied loads, elastic, plastic and residual stresses have been obtained.
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Nayak, Ajaya. « Elasto-Plastic Analysis of Initially-Stressed Plates Using a 3D Degenerated Mindlin-Kirchhoff Shell Element ». Dans 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-2383.

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Stelescu, Maria Daniela, Daniela Ioana Constantin, Maria Sonmez, Laurentia Alexandrescu, Mihaela Nituica et Mihai Georgescu. « Development of elasto-plastic eco-nano-materials for the footwear industry ». Dans 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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Yuge, Kohei, Nobuhiro Iwai et Noboru Kikuchi. « Topology Optimization Algorithm for Plates and Shells Subjected to Plastic Deformations ». Dans ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dac-5603.

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Abstract A topology optimization method for plates and shells subjected to plastic deformations is presented. The algorithms is based on the generalized layout optimization method invented by Bendsϕe and Kikuchi (1988), where an admissible design domain is assumed to be composed of microstructures with periodic cavities. The sizes of the cavities and the rotational angles of the microstructures are design variables which are optimized so as to minimize the applied work. The macroscopic material tensor for the porous material is numerically calculated by the homogenization method for the sensitivity analysis. In this paper, the method is applied to two-dimensional elasto-plastic problems. A database of the material tensor and its interpolation technique are presented. The algorithm is expanded into thin shells subjected to finite deformations. Several numerical examples are shown to demonstrate the effectiveness of these algorithms.
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