Parallelised finite/discrete element simulation of multi-fracturing solids and discrete systems

This paper outlines a dynamic domain decomposition-based parallel strategy for combined finite/discrete element analysis of multi-fracturing solids and discrete systems. Attention is focused on the parallelised interaction detection between discrete objects. Two graph representation models for discrete objects in contact are proposed which lay the foundation of the current development. In addition, a load imbalance detection and re-balancing scheme is also suggested to enhance the parallel performance. Finally, numerical examples are provided to illustrate the parallel performance achieved with the current implementation.