The effect of interfacial bonding of glass hollow microspheres and a polymer matrix on the elastic properties of syntactic foam was investigated using representative volume element (RVE) models, including partially debonded interfaces. Finite element analysis, with models having different debonding geometries, was performed to numerically estimate the elastic behavior of the models. The models ...

Abstract. Numerical homogenization is used for upscaling of the linear elasticity tensor of strongly heterogeneous microstructures. The implemented 3D algorithm is described in terms of six auxiliary elastic problems for the reference volume element (RVE). Rotated trilinear RannacherTurek finite elements are used for discretization of the involved subproblems. A parallel PCG method is implement...

Abstract In this study, Representative Volume Element based micromechanical modeling technique has been implemented to assess the mechanical properties of glass filled epoxy composites. Rod shaped fillers having an aspect ratio 80 were used for preparing composite. The three-dimensional unit cell model representative volume element was prepared with finite analysis tool ANSYS 19 using periodic ...

The modern polycrystalline composite materials have a complex internal structure consisting of different phases and interfaces with random distribution. Relevant examples are Al2O3/ZrO2, i.e. alumina/zirconia composites, widely used as structural applications ranging from aerospace to bio-engineering. Depending on the content grain size broad range material characteristics, among which elastic ...

A variationally consistent model-based computational homogenization approach for transient chemomechanically coupled problems is developed based on the classical assumption of first-order prolongation displacement, chemical potential, and (ion) concentration fields within a representative volume element (RVE). The presence potential as primary global represents mixed formulation, which has defi...

This paper describes the development of a hierarchical multiscale procedure within finite volume (FL) OpenFOAM framework for modeling mechanical response nonlinear heterogeneous solid materials. is first model mechanics using FL discretization method. In this computational procedure, information passed between macro- and microscales representative elements (RVEs), allowing general, nonperiodic ...

In this paper, a void closure model applicable to the general hot forming process has been proposed. Through representative volume element (RVE) method, influences of shape, orientation, and stress state on tendency were analysed. The was established so that it could consider these cross effects. calculates changing radius orientation during deformation by considering rate change parameters aff...

The aim of this work is to determine an effective yield criteria for porous pressure sensitive solids by employing a virtual testing strategy. focus on the sensitivity typically displayed geomaterials, such as sandstone. Virtual strategy based computational homogenisation approach following unified variational formulation, which provides bounds material properties given choice Representative Vo...

In this paper, an adaptive boundary element method (BEM) is presented for solving 3-D elasticity problems. The numerical scheme is accelerated by the new version of fast multipole method (FMM) and parallelized on distributed memory architectures. The resulting solver is applied to the study of representative volume element (RVE) for short fiberreinforced composites with complex inclusion geomet...