【摘要】 给出一复合材料接头损伤累积模型，包括分类损伤判据、损伤区刚度衰减和总体破坏判据；将该模型结合有限元法模拟单钉接头的损伤破坏过程，包括损伤起始、类型、累积及应力重分布的确定以及接头强度的预测；研究了３种铺层的碳／环氧复合材料单钉接头的损伤累积并与现有结果做了比较更多还原

【Abstract】 A progressive damage model is developed for composite joints.The model combined with finite element approach is used to simulate the damage-failure process of a single fastener composite joints.The mdel consists of classified damage criteria,stiffness degradation in damage zone and ultimate failure criteria.The simulation is capable of assessing damage beginning,damage types and damage accumulation,and of predicting the ultimate strength and the ultimate failure mode of the joint.Numerical calculations are given and the reults are compared with earlier papers.更多还原