Numerical calculation has been taken for rectangularcrack and the distribution of stress intensity factors along the crack edge has been obtained.
对矩形裂纹面进行了数值计算，得到了应力强度因子沿裂纹边界的分布规律。
2
To test the reliability of this method, rectangularcrack elliptical crack and semi-elliptical crack in infinite space and in semi-infinite space are calculated.
为了验证该方法的可靠性，本文对无限空间和半空间中矩形类、椭圆类和半椭圆类平片裂纹问题进行了计算。
3
The reason for inner crack in rectangular billet is analyzed and some measures to improve presented.