TY - JOUR
T1 - A ghost particle-based coupling approach for the combined finite-discrete element method
AU - Chen, Hu
AU - Zang, Mengyan
AU - Zhang, Y. X.
PY - 2016
Y1 - 2016
N2 - The combined finite-discrete element method takes the advantages of both the finite element (FE) method and the discrete element (DE) method, but a coupling approach is required for effective combination of the two methods. In this paper, a novel coupling approach is proposed by means of ghost particles. The entire domain is decomposed into a FE- A nd a DE-subdomain, and ghost particles are constructed inside the interface FE domain to connect with the DE domain in a consistent interaction manner as the DE method. A novel one-step back strategy is proposed to overcome the incompatibility of degree of freedoms between FE nodes and DE particles from a numerical sense. The coupling approach is very simple to implement and its effectiveness is validated by numerical examples.
AB - The combined finite-discrete element method takes the advantages of both the finite element (FE) method and the discrete element (DE) method, but a coupling approach is required for effective combination of the two methods. In this paper, a novel coupling approach is proposed by means of ghost particles. The entire domain is decomposed into a FE- A nd a DE-subdomain, and ghost particles are constructed inside the interface FE domain to connect with the DE domain in a consistent interaction manner as the DE method. A novel one-step back strategy is proposed to overcome the incompatibility of degree of freedoms between FE nodes and DE particles from a numerical sense. The coupling approach is very simple to implement and its effectiveness is validated by numerical examples.
UR - https://hdl.handle.net/1959.7/uws:64297
U2 - 10.1016/j.finel.2016.02.005
DO - 10.1016/j.finel.2016.02.005
M3 - Article
SN - 0168-874X
VL - 114
SP - 68
EP - 77
JO - Finite Elements in Analysis and Design
JF - Finite Elements in Analysis and Design
ER -