为了解复合材料加筋结构受到冰雹冲击后的损伤特性，基于软件Abaqus 建立了复合材料加筋结构的有限元模型，采用光滑粒子法模拟了冰雹撞击的过程，分析了冲击位
置、冲击能量及冲击入射角对复合材料加筋壁板冲击动力响应的影响，探讨了面板与筋条的分层和面板的损伤情况，通过对比数值模拟与试验结果验证了文中所建有限元模型的准确性． 在各种损伤形式中，基体的拉伸损伤和面板与筋条的分层损伤最为显著; 冲击点为筋条的边缘时，面板与筋条的分层损伤最为严重．

In order to discover the damage characteristics of composite stiffened panel under hail impact,firstly,a finite element model of composite stiffened structure is established in light of Abaqus.Secondly,the process of hail impact is simulated by means of smooth particle hydrodynamic approach.Then,the influences of impact location,impact energy and impact angle on the dynamic response of composite stiffened panels are analyzed.Moreover,the panel damage and the delamination between panel and stiffener are also discussed.Finally,a comparison between the numerical results and the experimental ones is made to verify the accuracy of the proposed finite element model.It is found that,among various damage forms,tensile damage of the matrix and delamination damage between the panel and the stiffener are most significant; and that,when the impact point is at the edge of stiffener,the delamination damage between the panel and the stiffener becomes the most serious.