集中弯矩作用下圆弧裂纹的弯曲问题

Ｓｃｈｗａｒｚ对称原理结合复应力函数的奇异性分析的方法，对于分析集中载荷问题有独特的优越性。本文利用这个方法研究了任意位置的集中弯矩作用下含共圆圆弧裂纹板的弯曲问题，获得了一般问题解答，给出一个实际重要情形的封闭形式解；最后求得弯曲应力强度因子公式。本文公式的特殊情形，与现有经典结果吻合。

THE BENDING PROBLEM OF CIRCULAR-ARC CRACKS SUBJECTED TO A CONCENTRATED MOMENT AT AN ARBITRARY POINT

The method has peculiar advantage by applying extended Schwarz principle integrated with the analysis of the singularity of complex stress functions to solve some problems under concentrated loads. in this peper this method is used to deal with the bending problem of cocirculsr cracks subjected to a concentrated moment at an arbitrary point. The general formulation of the problem and a closed form solution for a case of practical importance are obtained. The bending sires intensity factors are given, a spotal case of which is in agreement with the previous result.