【摘要】 为了提高弹丸侵彻类高速冲击仿真的精确度，本文利用有限元法（Finite element method, FEM）-光滑粒子流法（Smooth particle hydrodynamics, SPH）自适应耦合模型对蓝宝石侵彻深度（Depth of penetration,DOP）实验过程开展了数值模拟研究。通过DOP实验，验证了该算法下仿真模型的准确性，并对比了传统FEM算法和FEM-SPH固定耦合算法仿真模型的计算结果。研究表明，FEM-SPH自适应耦合算法在计算精度上有明显优势。更多还原

【Abstract】 In order to improve the precision of high-speed impact simulation for projectile penetration, the depth of penetration(DOP) process of sapphire is simulated by finite element method and smooth particle hydrodynamics(FEM-SPH) adaptive coupled model. The accuracy is verified by DOP experiment. The calculation results of the traditional FEM model and the FEM-SPH fixed coupled model are compared.The results show that the FEM-SPH adaptive coupled model has obvious advantages in calculation accuracy.更多还原