摘要
本文应用断裂力学理论，对含纵向裂纹提升机主轴的扭转进行了分析计算，求出了其扭转刚度和应力强度因子。
In this paper the torsion of the winder axle with longitudinal Crack has been investigated by the theory of fracture mechanics, and the torsional rigidity and stress intensity factors have been abtained.
