Two-scale concurrent simulations for crack propagation using FEM-DEM bridging coupling.

ABSTRACT: The Discrete element method (DEM) is a robust numerical tool for simulating crack propagation and wear in granular materials. However, the computational cost associated with DEM hinders its applicability to large domains. To address this limitation, we employ DEM to model regions experiencing crack propagation and wear, and utilize the finite element method (FEM) to model regions experiencing small deformation, thus reducing the computational burden. The two domains are linked using a FEM-DEM coupling, which considers an overlapping region where the deformation of the two domains is reconciled. We employ a "strong coupling" formulation, in which each DEM particle in the overlapping region is constrained to an equivalent position obtained by nodal interpolation in the finite element. While

SUBMITTER: Voisin-Leprince M 

PROVIDER: S-EPMC11442508 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature