复合材料层合板准静态压痕损伤研究  

Studies on Quasi-static Indentation Damage of Composite Laminates

作　　者：李禹[1] 张博平[1] 张开达[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《材料科学与工程学报》2006年第5期722-724,共3页Journal of Materials Science and Engineering

摘　　要：本文对复合材料层合板准静态横向压缩特性损伤进行了研究。在损伤模拟过程中采用机体开裂和分层扩展判据,分类考虑了不同的损伤形式,通过修正损伤层的材料常数来模拟层板损伤所造成的局部刚度下降对横向压痕过程的影响。损伤模拟结果与超声C扫描的结果吻合较好。In this paper, an experimental investigation was performed on the characteristics and damage of composite laminates with quasi-static indenting. Two damage criterion were adopted here to computer different impact damage modes. They were damage initiation criterion for matrix cracking and delamination propagation criterion for the laminate interfaces, The influence of local stiffness degression resulted from damage on impact process was simulated through modifying the material constants of damaged layers. The results of the analysis were compared with the existing test data , and a good agreement was found.

关 键 词：复合材料层合板 准静态压痕 损伤 

分 类 号：TB33[一般工业技术—材料科学与工程]