摘要
对含裂纹碳纤维增强的复合材料层合板进行了裂纹扩展方向预测理论的研究· 介绍了一种新的复合材料Z断裂理论,在裂纹尖端Z因子的定义中引入了新概念:面内平均应变。
A newly developed Z fracture criterion for the composite materials was introduced, the new concepts of in-plane average strain, in-plane dilatational strain energy density factor and reciprocal characteristic function were presented. Many experimental results show that the Z fracture criterion can be well used to predict the crack propagating direction for mode Ⅰ crack in carbon-fiber reinforced composite laminates.
出处
《应用数学和力学》
CSCD
北大核心
2004年第6期653-660,共8页
Applied Mathematics and Mechanics
基金
山西省自然科学基金资助项目(991063)
山西省计委留学基金资助项目(200077)
关键词
复合材料
裂纹扩展
Z断裂理论
S断裂准则
composite material
crack propagation
Z-fracture criterion
S-fracture criterion
