摘要
为了更简单地研究Ⅲ型动裂纹的尖端特性,利用Ⅲ型动裂纹的基本方程,并用复数变换解决了位移方程,建立了应力和位移的表达式。利用以上关系解决了不同应力和位移边界条件的问题。最后根据Miscs准则推导出塑性区轮廊的表达式,并且对应于不同的裂纹扩展速度,用电子计算机计算和打印出塑性区的形状。
In order to research on the properties of the tip of Ⅲ model moving crack more simply, the basic equation of Ⅲ model moving crack is used, and the displacement equation is resolved by using the variation of complex number, meanwhile, the representation of stress and displacement is presentcd. The problcms of the boundary condition of displacement and different stress are solved by using above relationships. In the end, the representation of the outline of plastic zone is deduced according to the criterion of Mises, and the shape of plastic zone is calculated and printed by computer correspounding to the expansion speed of different crack.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1991年第4期117-122,共6页
Journal of Northeast Forestry University
关键词
Ⅲ型动裂纹
裂纹尖端
塑性区
Ⅲ modcl moving crack
Tip of crack
Plastic zone
