双材料非弹性主方向半无限界面裂纹应力场  

Fracture Anasisly Of Interface Crack in Non-principal Directions of Elasticity for Double Orthotropic Composite Materials

作　　者：杨林[1] 李俊林[1] 

机构地区：[1]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》2010年第4期334-339,共6页Journal of Taiyuan University of Science and Technology

基　　金：山西省自然科学基金资助项目(2007011008)

摘　　要：利用坐标轴不平行于弹性主方向的应力、应变变换公式,并结合复合材料断裂复变方法,对正交异性双材料非弹性主方向半无限界面裂纹问题进行了研究,得到了用弹性主方向坐标系工程参数表示界面裂纹尖端的应力场、位移场。并给出双材料参数对半无限界面裂纹尖端应力场的影响规律。By the help of the transformation formulas of stress and strain of non-parallel axis principal directions of elasticity,the semi-interfacial crack problem of double dissimilar orthotropic composite material in non-principal directions of elasticity was studied.The theoretical formula of the stress field and displacement field near interface crack tip were derived.The influences of bi-material parameters on the stress field are investigated.

关 键 词：正交异性 非弹性主方向 半无限界面裂纹 应力场 

分 类 号：O346.1[理学—固体力学] O174.5[理学—力学]