For a wide range of applications, we need DEM simulations of granular matter in contact with flexible elastic boundaries. We present a novel method to describe the interaction between granular particles and a flexible elastic membrane. Here, the standard mass-spring model approach is supplemented by surface patches given by triangulation of the membrane. In contrast to standard mass-spring models, our simulation method allows for an efficient simulation even for large particle size dispersion. The novel method allows coarsening of the mass-spring system leading to a substantial increase in computation efficiency. The simulation method is demonstrated and benchmarked for a triaxial test.
@article{arxiv.2210.10222,
title = {DEM-Simulation of thin elastic membranes interacting with a granulate},
author = {Holger Goetz and Thorsten Pöschel},
journal= {arXiv preprint arXiv:2210.10222},
year = {2022}
}