GPU-accelerated smoothed particle finite element method for large deformation analysis in geomechanics

Particle finite element method (PFEM) is an effective numerical tool for solving large-deformation problems in geomechanics. By incorporating the node integration technique with strain smoothing into PFEM, we proposed smoothed particle (SPFEM). This paper extends SPFEM to three-dimensional cases and presents a executed on graphics processing units (GPUs) boost computational efficiency. The detailed parallel computing strategy GPU introduced. New computation formulations related are save memory space computing. Several benchmark solved validate approach evaluate acceleration performance. Numerical examples show that new not only can be saved but also efficiency improved. cost reduced by ~70% double-precision formulations. Compared sequential CPU simulation, GPU-accelerated simulation results significant speedup. overall speedup ranges from 8.21 11.17 simulations. Furthermore, capability of large-scale complicated demonstrated modelling progressive failure long slope strain-softening soil.