【摘要】 采用了正交异性材料的无量纲应力屈服准则。[1]，由平衡方程与屈服准则导出了用于计算裂纹尖端无量纲子均应力的积分方程对于Ⅰ型和Ⅱ型裂纹，构筑了应力全连续场的各分区通过数值计算，获得了直角坐标系各应力分量的角分布图更多还原

【Abstract】 The dimensionless stress yield criterion[1] for the orthotropic materials is adopted for consideration of the stress fields at plane - strain crack - tip in ortholropic solids. From the equliblium equations and the yield criterion, an integral equation for calculation of dimensioliless mean stress. For the cracks of mede Ⅰ and mede Ⅱ, different regions of continuous stress field are constituted. By use of the numerical method, the diagrams of θ - variation of stress components are ploted.更多还原