Topic
Representative elementary volume
About: Representative elementary volume is a research topic. Over the lifetime, 4105 publications have been published within this topic receiving 86863 citations.
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TL;DR: The PuMA software has been developed in order to compute effective material properties and perform material response simulations on digitized microstructures of porous media and includes a time-dependent, particle-based model for the oxidation of fibrous materials.
50 citations
TL;DR: This paper presents a quasi-static multiscale computational model with its verification and rational applications to mechanical behavior predictions of asphaltic roadways that are subject to viscoelastic deformation and fracture damage and is implemented using a finite element formulation.
Abstract: This paper presents a quasi-static multiscale computational model with its verification and rational applications to mechanical behavior predictions of asphaltic roadways that are subject to viscoelastic deformation and fracture damage. The multiscale model is based on continuum thermo-mechanics and is implemented using a finite element formulation. Two length scales (global and local) are two-way coupled in the model framework by linking a homogenized global scale to a heterogeneous local scale representative volume element. With the unique multiscaling and the use of the finite element technique, it is possible to take into account the effect of material heterogeneity, viscoelasticity, and anisotropic damage accumulation in the small scale on the overall performance of larger scale structures. Along with the theoretical model formulation, two example problems are shown: one to verify the model and its computational benefits through comparisons with analytical solutions and single-scale simulation results, and the other to demonstrate the applicability of the approach to model general roadway structures where material viscoelasticity and cohesive zone fracture are involved.
49 citations
TL;DR: In this article, a methodology based on statistical analysis and numerical experiments is proposed to determine the size of the representative volume element (RVE) for heterogeneous amorphous polymers subjected to finite deformations.
49 citations
01 Jan 1990
TL;DR: In this paper, a representative volume element (RVE) consisting of an elastic (linear or nonlinear) matrix and micro-defects is developed and relations between the overall stress and strain potentials and the corresponding local quantities are developed and discussed.
Abstract: For a “representative volume element” (RVE) consisting of an elastic (linear or nonlinear) matrix and microdefects, relations between the overall stress and strain potentials and the corresponding local quantities are developed and discussed. Results are specialized to RVE’s with a linearly elastic matrix. Illustrations are given for micro-defects consisting of cavities, cracks, and elastic inclusions, using three averaging schemes: a scheme based on noninteracting dilute distribution of defects, the self-consistent method, and the differential scheme.
49 citations
TL;DR: In this article, the effects of initiation and propagation of interface damage on the elastoplastic behavior of unidirectional SiC/Ti metal matrix composites (MMCs) subjected to off-axis loading are investigated.
49 citations