关于带缺陷和裂纹的半无限平面加筋结构的应力强度因子的计算

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On Computations of Stress Intensity Factors for Stiffened Half-Planes with Imperfections and Cracks

摘要: 本文研究两种不同材料、不同厚度、各带裂纹和椭圆孔的半无限平面加筋结构受均匀拉伸的问题.采用复变函数、振动法以幂级数形式给出裂纹尖端应力强度因子的计算公式.本文的实际计算扩充了“应力强度因子手册”中的结果,本文的特例,计算结果与[1]、[3]一致.

Abstract: In this paper we consider uniform extension problems for joined two half-planes with different thickness and material behavior and one of which contains an elliptical hole, the other contains a crack. Along the boundary of these half-planes there is a stiffening stringer. Computational formulas are given in power series form by complex variahie-pertubation method. Results obtained here give extension to those of "Handbook of stress intensity factors". Numerical results of special cases in this paper coincide with those of references [1], [3].

[1]	Isida, M., On the determination of stress intensity factors for some common problems. Engng.Fract.Mech.,2 (1973), 61;Methods of Analysis and Solutions of Crack Problems,edited by G.C. Sih, Noordhoff Int. Pub.(1973), 80.
[2]	Sih, G. C., P. C. Paris and F. Erdogan, Crack tip stress intensity factors for plane extension and plate bending problems, J. Appl. Mech.,Trans. ASME,ser. E, 29 (1962). 306.
[3]	Sih, G. C., Handbook of Stress Intensity Factors, Leheigh Univ.,Bethlehem,Pa.,U.S.A.(1973).