N-PFEM modelling of plate anchor movement in sand
N-PFEM modelling of plate anchor movement in sand
In this paper, we utilise a novel numerical approach, the nodal integration-based particle finite element method (N-PFEM), to investigate the horizontal movement of a vertically placed plate anchor in sands. The N-PFEM is an improved version of the particle finite element method (PFEM) for modelling large deformation problems with severe free-surface evolution. By adopting the nodal integration scheme and the generalised Hellinger-Reissner variational principle, the N-PFEM does not require variable mapping when handling history-dependent materials nor stress regularisation technique for dynamic problems. In this study, the Mohr-Coulomb model with strain-softening behaviour is adopted. The shear strength decreases according to the increasing deviatoric plastic strain. The simulated results, including both the resistance force and the failure mode, are presented and discussed.
Yujia Zhang; Xue Zhang
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
2. Finite element, finite difference, discrete element, material point and other methods
https://doi.org/10.53243/NUMGE2023-249
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