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Relevant bibliographies by topics / Elastoplastic matrix

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Academic literature on the topic 'Elastoplastic matrix'

Author: Grafiati

Published: 25 May 2024

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Journal articles on the topic "Elastoplastic matrix"

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Wu, Y., and JW Ju. "Elastoplastic damage micromechanics for continuous fiber-reinforced ductile matrix composites with progressive fiber breakage." International Journal of Damage Mechanics 26, no. 1 (2016): 4–28. http://dx.doi.org/10.1177/1056789516655671.

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An elastoplastic damage micromechanical framework considering evolutionary fiber breakage is proposed to predict the overall material behaviors of continuous fiber-reinforced composites with ductile matrix under external loading. In the present work, we assume that the overall nonlinear behavior of a composite is primarily attributed to the plastic deformation in the matrix as well as the damage evolution due to fiber breakage. The effective elastoplastic deformations are governed by means of the effective yield surface derived from a representative microstructure with elastic fibers embedded

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Buryachenko, V. A., F. G. Rammerstorfer, and A. F. Plankensteiner. "A Local Theory of Elastoplastic Deformation of Two-Phase Metal Matrix Random Structure Composites." Journal of Applied Mechanics 69, no. 4 (2002): 489–96. http://dx.doi.org/10.1115/1.1479697.

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A two-phase material is considered, which consists of a homogeneous elastoplastic matrix containing a homogeneous statistically uniform random set of ellipsoidal inclusions with the same form, orientation, and mechanical properties. The multiparticle effective field method (used in this paper) in the original form assumes constant plastic strains in the matrix. This assumption is replaced by the following micromechanical model: Each inclusion consists of an elastic core and a thin coating. The mechanical properties of both the matrix and the coating are the same but with different plastic stra

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Ju, J. W., and Tsung-Muh Chen. "Micromechanics and Effective Elastoplastic Behavior of Two-Phase Metal Matrix Composites." Journal of Engineering Materials and Technology 116, no. 3 (1994): 310–18. http://dx.doi.org/10.1115/1.2904293.

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A micromechanical framework is presented to predict effective (overall) elasto-(visco-)plastic behavior of two-phase particle-reinforced metal matrix composites (PRMMC). In particular, the inclusion phase (particle) is assumed to be elastic and the matrix material is elasto-(visco-)plastic. Emanating from Ju and Chen’s (1994a,b) work on effective elastic properties of composites containing many randomly dispersed inhomogeneities, effective elastoplastic deformations and responses of PRMMC are estimated by means of the “effective yield criterion” derived micromechanically by considering effects

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Haghgoo, M., R. Ansari, MK Hassanzadeh-Aghdam, and A. Darvizeh. "Elastoplastic behavior of the metal matrix nanocomposites containing carbon nanotubes: A micromechanics-based analysis." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 4 (2017): 676–86. http://dx.doi.org/10.1177/1464420717700927.

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The elastoplastic behavior of aluminum (Al) nanocomposites reinforced with aligned carbon nanotubes (CNTs) is characterized using a unit cell micromechanical model. The interphase zone caused by the chemical reaction between CNT and Al matrix is included in the analysis. To attain the elastoplastic stress–strain curve of the nanocomposites, the successive approximation method together with the von Mises yield criterion is employed. The effects of several important factors including the volume fraction and diameter of CNT, material properties, and size of interphase on the elastoplastic stress–

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Ju, J. W., and K. H. Tseng. "Effective Elastoplastic Algorithms for Ductile Matrix Composites." Journal of Engineering Mechanics 123, no. 3 (1997): 260–66. http://dx.doi.org/10.1061/(asce)0733-9399(1997)123:3(260).

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TANG, HONGXIANG, ZHAOLONG HU, and XIKUI LI. "THREE-DIMENSIONAL PRESSURE-DEPENDENT ELASTOPLASTIC COSSERAT CONTINUUM MODEL AND FINITE ELEMENT SIMULATION OF STRAIN LOCALIZATION." International Journal of Applied Mechanics 05, no. 03 (2013): 1350030. http://dx.doi.org/10.1142/s1758825113500300.

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A pressure-dependent elastoplastic Cosserat continuum model for three-dimensional problems is presented in this paper. The nonassociated Drucker–Prager yield criterion is particularly considered. Splitting the scalar product of the stress rate and the strain rate into the deviatoric and the spherical parts, the consistent algorithm of the pressure-dependent elastoplastic model is derived in the three-dimensional framework of Cosserat continuum theory, i.e., the return mapping algorithm for the integration of the rate constitutive equation and the closed form of the consistent elastoplastic tan

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He, Guanqiang, Hu Wang, Guangxin Huang, Haitao Liu, and Guangyao Li. "A Parallel Elastoplastic Reanalysis Based on GPU Platform." International Journal of Computational Methods 14, no. 05 (2016): 1750051. http://dx.doi.org/10.1142/s0219876217500517.

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An efficient parallel elastoplastic reanalysis method is suggested. The main backbone of the suggested method is based on combined approximation (CA) reanalysis. GPU parallel computation is used to accelerate assembling the stiffness matrix. Assembling process is divided into the offline part for strain matrix and online part for element stiffness matrix, which makes the structure of the program more reasonable and efficient. Pseudo elastic analysis is introduced and extended to load increment method to make the CA method more feasible. The numerical examples show that the suggested method can

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HUANG, ZHUPING, YONGQIANG CHEN, and SHU-LIN BAI. "AN ELASTOPLASTIC CONSTITUTIVE MODEL FOR POROUS MATERIALS." International Journal of Applied Mechanics 05, no. 03 (2013): 1350035. http://dx.doi.org/10.1142/s175882511350035x.

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A micromechanics-based elastoplastic constitutive model for porous materials is proposed. With an assumption of modified three-dimensional Ramberg–Osgood equation for the compressible matrix material, the variational principle based on a linear comparison composite is applied to study the effective mechanical properties of the porous materials. Analytical expressions of elastoplastic constitutive relations are derived by means of micromechanics principles and homogenization procedures. It is demonstrated that the derived expressions do not involve any additional material constants to be fitted

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Sun, L. Z., and J. W. Ju. "Elastoplastic Modeling of Metal Matrix Composites Containing Randomly Located and Oriented Spheroidal Particles." Journal of Applied Mechanics 71, no. 6 (2004): 774–85. http://dx.doi.org/10.1115/1.1794699.

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Micromechanics-based effective elastic and plastic formulations of metal matrix composites (MMCs) containing randomly located and randomly oriented particles are developed. The averaging process over all orientations upon three elastic governing equations for aligned particle-reinforced MMCs is performed to obtain the explicit formulation of effective elastic stiffness of MMCs with randomly oriented particles. The effects of volume fraction of particles and particle shape on the overall elastic constants are studied. Comparisons with the Hashin-Shtrikman bounds and Ponte Castaneda-Willis bound

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Potapov, Alexander N. "ABOUT THE FREE-VIBRATION MODE SHAPES OF ELASTOPLASTIC DISSIPATIVE SYSTEMS." International Journal for Computational Civil and Structural Engineering 14, no. 3 (2018): 114–25. http://dx.doi.org/10.22337/2587-9618-2018-14-3-114-125.

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The author presents the conditions of the generalized orthogonality of the free-vibration mode shapes of an elastic dissipative system, for which traditional classical orthogonality conditions are a private case. As opposed to these conditions, the above ratios contain the mass matrix, the damping matrix, and the diagonal form of the spectral characteristics (damping coefficients and mode-shape frequencies). Within the theory of time analysis, free-vibration mode shapes of an elastoplastic system are built on the basis of using a schematized diagram of strain with hardening. The author propose

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Dissertations / Theses on the topic "Elastoplastic matrix"

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Shi, Yue. "Micro-mechanics-based models of monotonic and cyclic behaviors of quasi-brittle rock-like materials having an elasto-viscoplastic matrix with microcracks." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDENGSYS/2023/2023ULILN057.pdf.

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L'objectif principal de cette thèse est de modéliser le comportement mécanique macroscopique des géomatériaux dans des conditions de chargement instantané et dépendant du temps. Dans ce contexte, le matériau étudié est modélisé du point de vue de la microstructure en utilisant des schémas de localisation et d'homogénéisation bien adaptés. À l'échelle microscopique, on suppose que les microfissures ont une morphologie en forme de penny et qu'elles sont intégrées de manière aléatoire dans une matrice solide isotrope. Dans le cadre de la thermodynamique, deux variables internes, la déformation in

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Mosbah, Pascal. "Etude expérimentale et modélisation du comportement de poudres métalliques au cours du compactage en matrice fermée." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10167.

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Ce memoire, qui se decompose en trois parties, traite de la compaction des poudres metalliques. Dans la premiere partie des essais de compression en matrice fermee, de compression simple, isotrope et triaxiale ainsi que des essais de traction sont effectues a partir de dispositifs originaux. Dans la deuxieme partie plusieurs lois de comportement elasto-plastiques avec ecrouissage en densite sont etudiees et identifiees a partir des differents essais qui viennent d'etre presentes. Enfin dans la troisieme partie les lois presentees sont implantees dans le code de calcul par elements finis lagami

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Book chapters on the topic "Elastoplastic matrix"

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Lagoudas, Dimitris C., and Andres C. Gavazzi. "Incremental Elastoplastic Behavior of Metal Matrix Composites Based on Averaging Schemes." In Inelastic Deformation of Composite Materials. Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4613-9109-8_22.

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Ko, Yu-Fu, and Jiann-Wen Woody Ju. "Fiber Cracking and Elastoplastic Damage Behavior of Fiber Reinforced Metal Matrix Composites." In Handbook of Damage Mechanics. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-5589-9_12.

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Ko, Yu-Fu, and Jiann-Wen Woody Ju. "Fiber Cracking and Elastoplastic Damage Behavior of Fiber Reinforced Metal Matrix Composites." In Handbook of Damage Mechanics. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8968-9_12-1.

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Ng, Ernest T. Y., and Afzal Suleman. "Elastoplastic Modeling of Multi-phase Metal Matrix Composite with Void Growth Using the Transformation Field Analysis and Governing Parameter Method." In Computational Methods in Applied Sciences. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8584-0_10.

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Yuan, K. Y., and Jiann-Wen Woody Ju. "New Strain Energy-Based Coupled Elastoplastic Damage-Healing Mechanics Accounting for Matric Suction Effect for Geomaterials." In Handbook of Damage Mechanics. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8968-9_14-1.

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Gramegna, Liliana, Ayman A. Abed, Wojciech T. Sołowski, Guido Musso, and Gabriele Della Vecchia. "An Elastoplastic Framework Accounting for Changes in Matric and Osmotic Suction in Unsaturated Non-expansive Clays." In Springer Series in Geomechanics and Geoengineering. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-34761-0_38.

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Yuan, K. Y., and Jiann-Wen Woody Ju. "New Strain-Energy Based Coupled Elastoplastic Damage-Healing Mechanics Healing mechanics Accounting for Matric Suction Effect for Geomaterials." In Handbook of Damage Mechanics. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-5589-9_14.

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Ju, J. W., and K. H. Tseng. "Effective Elastoplastic Behavior of Two-Phase Metal Matrix Composites: Micromechanics and Computational Algorithms." In Inelasticity and Micromechanics of Metal Matrix Composites. Elsevier, 1994. http://dx.doi.org/10.1016/b978-0-444-81800-3.50010-9.

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Janaki, N., K. Sushita, A. L. Wisemin Lins, and T. R. Premila. "Modeling and Characterization of Carbon Nano Tube Nanocomposites." In Intelligent Technologies for Scientific Research and Engineering. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815079395123010016.

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The interfacial sliding motion of carbon nanotubes (CNTs) within a polymeric hosting matrix gives rise to energy dissipation. By tuning the interfacial shear strength (ISS) of the CNT-matrix interface, the dissipation can take place within tunable ranges of strain amplitudes. This is the basis for conceiving new multilayered carbon nanotube nanocomposites in which different layers with tunable ISS can lead to a concurrent optimization of strength and dissipation, often seen as two conflicting targets. Such optimization is tackled by a novel meso-mechanical nonlinear inelastic model proven to effectively predict the damping capacity of CNT nanocomposites. The proposed elastoplastic, rate-independent, constitutive theory is based on the mean-field homogenization method which combines the Eshelby equivalent inclusion method, the Mori-Tanaka homogenization, and the concept of inhomogeneous inclusions with inelastic eigen strains introduced to describe the inelastic stick-slip. Since the ISS parameter plays a key role in the nanocomposite strength and dissipation, the current work seeks to improve the strength and damping properties by suitable interfacial CNT-matrix functionalization. Variations in the ISS parameter can be achieved by a functionalization that affects the chemical bonds between CNTs and the hosting matrix. A set of experimental tests - including DMA analysis, calorimetry and spectroscopy — aims to evaluate the influence of the ISS parameter, together with other constitutive parameters, on the nanocomposite strength and damping capacity.

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Conference papers on the topic "Elastoplastic matrix"

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Kwon, Y. W., C. Kim, and G. Y. Yang. "A Unified Micromodel for Constitutive Behavior of Metal Matrix Composites Undergoing Plastic Deformation." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0656.

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Abstract The objective of this study is to develop a unified, three-dimensional micromodel which can describe the nonlinear elastoplastic constitutive behavior of MMC’s with continuous fibers, particles, or aligned short fibers as the reinforcement. In the micromodel, both the reinforcement and the matrix may have elastic and/or elastoplastic deformation(s), respectively. However, as in most cases, the development is shown for elastic reinforcement in an elastoplastic matrix. The micromodel uses a repeating unit-cell model with eight subcells. For a particulate or an aligned short fiber compos

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Ju, J. W., H. N. Ruan, and Y. F. Ko. "Micromechanical Evolutionary Elastoplastic Damage Model for Fiber-Reinforced Metal Matrix Composites With Fiber Debonding." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59487.

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A micromechanical evolutionary damage model is proposed to predict the overall elastoplastic behavior and interfacial damage evolution of fiber-reinforced metal matrix composites. Progressive debonded fibers are replaced by equivalent voids. The effective elastic moduli of three-phase composites, composed of a ductile matrix, randomly located yet unidirectionally aligned circular fibers, and voids, are derived by using a rigorous micromechanical formulation. In order to characterize the overall elastoplastic behavior, an effective yield criterion is derived based on the ensemble-area averaging

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Liu, H. T., Lizhi Sun, and J. W. Ju. "Micromechanics-Based Elastoplastic and Damage Modeling of Particle Reinforced Composites." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59303.

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A micromechanical damage model is proposed to predict the effective elastoplastic behavior of ductile composites containing randomly dispersed particles. The interfacial debonding between particles and the matrix is considered as the primary micromechanical damage mechanism. The debonded isotropic elastic reinforcements are replaced by equivalent anisotropic elastic inclusions. The interfacial debonding process is simulated by three-dimensional debonding angles. After the local stress field in the matrix is calculated, the homogenization averaging procedure is employed to estimate the effectiv

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Khalevitsky, Yu V., N. V. Burmasheva, and A. V. Konovalov. "An approach to the parallel assembly of the stiffness matrix in elastoplastic problems." In MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS-2016): Proceedings of the 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Author(s), 2016. http://dx.doi.org/10.1063/1.4967080.

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Liu, Haitao, and Lizhi Sun. "Multiscale Modeling of Elastoplastic Behavior for Aluminum-Based Metallic-Glass Nanocomposites." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79208.

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Progress has recently been made in experimental studies on mechanical properties and strengthening mechanisms of nanoparticle (α-Al) reinforced amorphous aluminum-matrix nanocomposites. However, little quantitative mechanical modeling of amorphous nanocomposites is available to demonstrate the underlying strengthening and deforming mechanisms. The objective of this paper is to explore the overall constitutive relationship of α-Al-reinforced amorphous nanocomposites in terms of a multiscale approach starting from the microstructure at nanoscale. The overall strengthening and deforming behavior

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Tang, Tian, and Wenbin Yu. "A Variational Asymptotic Model for Predicting Initial Yielding Surface and Elastoplastic Behavior of Metal Matrix Composite Materials." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43285.

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The focus of this paper is to develop a micromechanics model based on the variational asymptotic method for unit cell homogenization (VAMUCH) for predicting of the initial yielding surface, overall instantaneous moduli, and elastoplastic behavior of metal matrix composites. Considering the size of the microstructure as a small parameter, we can formulate a variational statement of the unit cell through an asymptotic expansion of the energy functional. To handle realistic microstructures, we implement this new model using the finite element method. For model validation, we used a few examples t

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Ju, J. W., and K. Yanase. "Elastoplastic Micromechanical Damage Mechanics for Composites With Progressive Partial Fiber Debonding and Thermal Residual Stress." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42744.

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By incorporating interfacial damage and thermal residual stress, a novel elastoplastic damage model is proposed to predict the overall transverse mechanical behavior of fiber-reinforced ductile matrix composites within the framework of micromechanics. Based on the concept of fictitious inclusion, and taking the debonding angle into consideration, partially debonded isotropic fibers are replaced by equivalent orthotropic yet perfectly bonded elastic fibers. Up to three interfacial damage modes (no debonding, partial debonding and complete debonding) are considered. The Weibull’s probabilistic f

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Lee, Haeng-Ki, and Srdan Simunovic. "Constitutive Modeling for Impact Simulation of Random Fiber Composite Structures." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0888.

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Abstract A constitutive model for progressive crushing is presented to predict impact behavior and damage evolution in random carbon fiber polymer matrix composites (RCFPMCs). Based on the ensemble-volume averaging process and first-order effects of eigenstrains due to the existence of prolate fibers, an effective yield criterion is derived to estimate the overall elastoplastic damage responses. First, an effective elastoplastic constitutive damage model for aligned fiber-reinforced composites is proposed. A micromechanical damage constitutive model for RCFPMCs is then developed. The governing

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Chen, J. S., C. T. Wu, H. P. Wang, and S. Yoon. "Efficient Meshfree Formulation for Metal Forming Simulations." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1879.

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Abstract A stabilized conforming (SC) nodal integration method is developed for elastoplastic contact analysis of metal forming processes. In this approach, strain smoothing stabilization is introduced to eliminate spatial instability in Galerkin meshfree methods using nodal integration. The gradient matrix associated with strain smoothing satisfies the integration constraint (IC) of linear exactness in the Galerkin approximation. Strain smoothing formulation and numerical procedures for history-dependent problems are introduced. Applications to metal forming analysis are presented, with the r

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McLean, Matthew L., and D. Nicolas Espinoza. "Distant Fault Reactivation Due to Temperature and Pressure Changes Accounting for Rock Matrix and Fault Plasticity." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0656.

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ABSTRACT Large-scale geothermal energy production and carbon geological storage are emerging technologies. Injection of non-native fluids in the subsurface alters reservoir pore pressure and temperature changing the initial state of stress, even beyond the plume and thermal front, which could potentially lead to the reactivation of distant faults. Published work so far usually neglects elastoplastic rock matrix response and effects of plastified reservoir volume on distant stress changes. This paper presents three-dimensional thermo-hydro-mechanical (THM) numerical simulations of (1) a hydroth

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