Implement the particle finite element method in ABAQUS

抄録

We implement the particle finite element method (PFEM) in the general numerical simulation framework ABAQUS to investigate the quasi-static collapse of two-dimensional granular columns and landslides. As a recently proposed continuum approach, the PFEM inherits both the solid mathematical foundation of the particle of the traditional finite element method and the flexibility of particle methods in simulating ultra-large deformation problems. In our work, the governing equations of the PFEM are solved by the ABQUS iteratively to improve the accuracy and efficiency of simulation results. The typical collapse patterns of granular columns are reproduced in the PFEM simulation and the physical mechanism behind the collapse phenomenon is evaluated. We compare the simulated collapse processes with the experimental observations, where a satisfactory agreement is achieved.