双材料非弹性主方向半无限界面裂纹断裂分析  

Anasisly of Semi-Infinite Interface Crack in Non-principal Directions of Elasticity for Orthotropic Composite Bi-Materials

作　　者：杨林[1,2] 李俊林[2] 

机构地区：[1]太原科技大学运城工学院,山西运城044000 [2]太原科技大学应用科学学院,太原030024

出　　处：《太原科技大学学报》2011年第5期420-424,共5页Journal of Taiyuan University of Science and Technology

基　　金：山西省自然科学基金(2011011021-3)

摘　　要：研究了正交异性双材料非弹性主方向界面裂纹问题,利用坐标轴不平行于弹性主方向的转轴变换公式,结合复合材料断裂复变方法,在特征方程组的判别式都小于零时,得到了正交异性双材料非弹性主方向半无限界面裂纹尖端应力场的理论解。并给出双材料参数对界面裂纹尖端应力场的影响规律。A study of double dissimilar orthotropic composite material in non-principal directions of elasticity interfacial crack problem was made.The stress and strain of non-parallel axis principal directions of elasticity transformation formulas was used.When the discriminations of characteristic equations are less than zero,the theoretical formula of the stress field and displacement near crack tip can be obtained by using complex functions methods of composite material fracture,and their influences on the stress field are investigated.

关 键 词：正交异性双材料 非弹性主方向 界面裂纹 应力场 

分 类 号：O346[理学—固体力学]