TY  - JOUR
AU  - Liang, Guang-Qi
AU  - Sun, Peng-Nan
AU  - Zhang, A-Man
PY  - 2025
TI  - Development of a Multi-Resolution SPH-PD Model for Simulating Ice Sheet Fragmentation under Underwater Explosion Loads
JO  - Computer Modeling in Engineering & Sciences
SN  - 1526-1492
SP  - 3405
EP  - 3431
VL  - 145
IS  - 3
AB  - A multi-resolution smoothed particle hydrodynamics and peridynamics (SPH-PD) coupling model is proposed in this study for simulating the fracture characteristics of ice plates exposed to underwater blast loads. The SPH model employs a volume adaptive scheme (VAS) and a multi-resolution particle technique to accurately simulate explosive charge detonation and shock wave propagation. This approach addresses numerical challenges from charge expansion and significant size disparity between the charge and the fluid particles. The model captures the full underwater explosion process, covering both the shock wave phase and the bubble expansion stage, by applying appropriate equations of state for each respective phase. To analyze ice plate damage and crack propagation influenced by temperature changes, an ordinary state-based PD (OSB-PD) formulation with coupled mechanical and thermodynamic models is used. Numerical results show that the proposed coupling method demonstrates good agreement with reference solutions and experimental data.
UR  - https://doi.org/10.32604/cmes.2025.072496
DO  - 10.32604/cmes.2025.072496