On efficient and reliable stochastic generation of RVEs for analysis of composites within the framework of homogenization
For researchers in composite materials homogenization, this work provides practical, directly implementable algorithms for RVE generation, though it is an incremental improvement over existing methods.
The paper presents two efficient methods (Random Sequential Adsorption and Molecular Dynamics) for generating representative volume elements (RVEs) of composites with spherical and cylindrical inclusions, providing explicit intersection conditions and demonstrating that RSA is powerful for low volume fractions while MD handles denser configurations.
In this paper we describe efficient methods of generation of representative volume elements (RVEs) suitable for producing the samples for analysis of effective properties of composite materials via and for stochastic homogenization. We are interested in composites reinforced by a mixture of spherical and cylindrical inclusions. For these geometries we give explicit conditions of intersection in a convenient form for verification. Based on those conditions we present two methods to generate RVEs: one is based on the Random Sequential Adsorption scheme, the other one on the time driven Molecular Dynamics. We test the efficiency of these methods and show that the first one is extremely powerful for low volume fraction of inclusions, while the second one allows us to construct denser configurations. All the algorithms are given explicitly so they can be implemented directly.