摘要
本文在裂纹尖端场的应力分量仅仅是θ的函数的假设下,利用Hill屈服准则和平衡方程导出了正交异性理想塑性材料平面应力问题中裂纹尖端场的微分方程;在允许应力不连续线存在的情况下,把解析表达和数值计算法结合起来,得到了Ⅰ型和Ⅱ型裂纹尖端的应力场.
Under the hypothesis that the stress components of crack-tip fields are only the functions of θ, the differential equations of plane-stress crack-tip stress fields for orthotropic perfectly-plastic materials are obtained by using Hill's yield condition and equilibrium equations. By combining the general analytical expression with the numerical method the crack-tip stress fields for orthotropic perfectly-plastic materials for plane stress are presented.
出处
《应用数学和力学》
EI
CSCD
北大核心
1991年第4期369-374,共6页
Applied Mathematics and Mechanics
关键词
正交异性
塑性
裂纹尖端
应力场
orthotropic, plasticity, crack-tip, stress field
