正交异性理想塑性材料平面应力问题的裂纹尖端应力场

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Plane-Stress Crack-Tip Stress Fields for Orthotropic Perfectly-Plastic Materials

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.
- 正交异性 /
- 塑性 /
- 裂纹尖端 /
- 应力场
Abstract: 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.
- orthotropic /
- plasticity /
- crack-tip /
- stress field

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