受远方拉伸的孔边角裂纹的应力强度因子

STRESS INTENSITY FACTORS FOR CORNER CRACKS AT HOLE UNDER REMOTE TENSION

本文应用作者近年来发展的三维权函数法计算了孔边角裂纹受远方拉伸情况下的应力强度因子,所得结果与文献中的解进行了广泛的比较,并讨论了二维无裂纹应力分布对权函数法所得结果的精度的影响。文中为这一问题补充了新的解答。

The three dimensional weight function method developed in [4,5] is used to determine stress intensity factors for corner cracks at a hole in finite thickness plates subjected to remote tensile loading. The geometry parameters considered are r/t=0.5,l,2;a/c = 0.2,0.5,1,2;a/t= 0.2,0.5 within c/r≤2.The results are compared where possible, with other solutions available in the literature. Generally good agreement is observed. The effect of two dimensional unflawed stress distribution on the weight function results is discussed.The three dimensional weight function method developed in [4,5] is used to determine stress intensity factors for corner cracks at a hole in finite thickness plates subjected to remote tensile loading. The geometry parameters considered are r/t=0.5,l,2;a/c = 0.2,0.5,1,2;a/t= 0.2,0.5 within c/r≤2.The results are compared where possible, with other solutions available in the literature. Generally good agreement is observed. The effect of two dimensional unflawed stress distribution on the weight function results is discussed.