Random Microstructure Generation

Overview & Synopsis

This paper presents a method for automatically generating threedimensional (3D) microstructures of composites with a view to predicting their effective properties by finite element (FE) methods. The loads are modeled by dispersed and randomly oriented ellipsoids using the random sequential adsorption (RSA) algorithm developed under Matlab. The advantage of this method is its good applicability to a large number of heterogeneities of different sizes and shapes (grains, wafers, voids, needles, fibers, etc.). The geometric of the microstructure is converted into STL (Standard Tessellation Language) format commonly in rapid prototyping (i.e., 3D printing, additive manufacturing) and can be exported to a finite element calculation software package