基于连续损伤力学，对弹丸冲击复合材料多层板靶的变形－损伤过程给出了必要的基本方程，进行了三维有限元分析。将靶板处理为具有材料各向异性和结构非均匀性；冲击引起的微损伤是各向异性的，造成材料的非线性；冲击造成的局部大变形，构成几何非线性。宏观损伤（包括层内基体开裂、纤维断裂和层间分层）在有限元分析中用节点分裂法处理。钢质弹丸假设是线弹性的，不考虑它在冲击过程中的损伤。计算结果表明，采用本文中提出的方法，能较好地模拟复合材料层合板受弹丸冲击时的损伤、变形过程 Based on the continuous damage mechanics, the necessary basic equations are given for the deformation-damage process of the projectile impact composite multilayer target, and the three-dimensional finite element analysis is carried out. The target plate is treated as having anisotropy of material and structural inhomogeneity. Micro-damage caused by impact is anisotropic, resulting in non-linearity of the material. Local large deformation caused by impact forms geometric nonlinearity. Macroscopic damage (including the cracking of the substrate in the layer, fiber breakage and delamination) was treated by the node splitting method in the finite element analysis. The steel projectile is assumed to be linear and elastic, regardless of its damage during impact. The calculation results show that the method proposed in this paper can simulate the damage and deformation process of composite laminates when projectile impact