Image-based modelling of binary composites

A simple algorithm has been developed which is easy to implement and is capable of converting a microstructural image of a binary composite into a finite element mesh. The image is morphologically reconstructed as a set of arbitrarily shaped polygons to represent the particles. The pixel connectivity is used to identify each polygon, which is expressed as a set of ordered points. This geometric information is then used to partition the finite element mesh. This was achieved by using the Abaqus python scripting interface. Cohesive elements were assigned along the particle–matrix interface to allow debonding to be studied. This approach was used to model a fire resistant particulate composite poly(methyl methacrylate)/alumina trihydrate (PMMA/ATH).