該斷裂方法在LS-DYNA中主要為SPG應(yīng)用。SPG的bond破壞的準(zhǔn)則是EPS等效塑性應(yīng)變或損傷模型等,會保持質(zhì)量守恒;3)Shape function enrichment是擴展有限元XFEM方法,該方法需要跟蹤裂紋界面,然后根據(jù)需要、通過形函數(shù)在插值空間表達裂紋。
——FEM-精度高-建模和邊界條件容易加載-大變形不易-刪單元影響力和能量仿真方法——FEM—DEM/SPH仿真方法——SPGSPG Features? Galerkin framework: the same as the conventional FEM‐Numerically accurate and robust in solid and
Lagrangian particle methods in the thermo-mechanical friction drilling analysis, Computational Mechanics (2019) CT Wu, Y Wu, D Lyu, X Pan, W Hu, The momentum-consistent smoothed particle Galerkin (MC-SPG
Lagrangian particle methods in the thermo-mechanical friction drilling analysis, Computational Mechanics (2019) CT Wu, Y Wu, D Lyu, X Pan, W Hu, The momentum-consistent smoothed particle Galerkin (MC-SPG