TY - JOUR

T1 - Automatic three-dimensional geometry and mesh generation of periodic representative volume elements for matrix-inclusion composites

AU - Schneider, Konrad

AU - Klusemann, Benjamin

AU - Bargmann, Swantje

N1 - Funding Information: Financial support by the German Research Foundation (DFG) via SFB 986 “M3” (project B6) is gratefully acknowledged. Publisher Copyright: © 2016 The Authors

PY - 2016/9/1

Y1 - 2016/9/1

N2 - This paper introduces an efficient method to automatically generate and mesh a periodic three-dimensional microstructure for matrix-inclusion composites. Such models are of major importance in the field of computational micromechanics for homogenization purposes utilizing unit cell models. The main focus of this contribution is on the creation of cubic representative volume elements (RVEs) featuring a periodic geometry and a periodic mesh topology suitable for the application of periodic boundary conditions in the framework of finite element simulations. Our method systematically combines various meshing tools in an extremely efficient and robust algorithm. The RVE generation itself follows a straightforward random sequential absorption approach resulting in a randomized periodic microstructure. Special emphasis is placed on the discretization procedure to maintain a high quality mesh with as few elements as possible, thus, manageable for computer simulations applicable to high volume concentrations, high number of inclusions and complex inclusion geometries. Examples elucidate the ability of the proposed approach to efficiently generate large RVEs with a high number of anisotropic inclusions incorporating extreme aspect ratios but still maintaining a high quality mesh and a low number of elements.

AB - This paper introduces an efficient method to automatically generate and mesh a periodic three-dimensional microstructure for matrix-inclusion composites. Such models are of major importance in the field of computational micromechanics for homogenization purposes utilizing unit cell models. The main focus of this contribution is on the creation of cubic representative volume elements (RVEs) featuring a periodic geometry and a periodic mesh topology suitable for the application of periodic boundary conditions in the framework of finite element simulations. Our method systematically combines various meshing tools in an extremely efficient and robust algorithm. The RVE generation itself follows a straightforward random sequential absorption approach resulting in a randomized periodic microstructure. Special emphasis is placed on the discretization procedure to maintain a high quality mesh with as few elements as possible, thus, manageable for computer simulations applicable to high volume concentrations, high number of inclusions and complex inclusion geometries. Examples elucidate the ability of the proposed approach to efficiently generate large RVEs with a high number of anisotropic inclusions incorporating extreme aspect ratios but still maintaining a high quality mesh and a low number of elements.

KW - Conforming mesh

KW - Homogenization

KW - Matrix-inclusion composite

KW - Meshing strategy

KW - Periodic mesh

KW - Random sequential absorption

KW - Representative volume element

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84978285825&partnerID=8YFLogxK

U2 - 10.1016/j.advengsoft.2016.06.001

DO - 10.1016/j.advengsoft.2016.06.001

M3 - Journal articles

AN - SCOPUS:84978285825

VL - 99

SP - 177

EP - 188

JO - Advances in Engineering Software

JF - Advances in Engineering Software

SN - 0965-9978

ER -