变截面圆杆轴向拉压时的剪应力分析

Shearing Stress Problem of Variable Section Round Bar in Axial Tension and Compress

通过分析变截面圆杆轴向拉压时横截面上的应力问题，论证了在该类图杆横截 面上存在沿径向的剪应力，导出了计算该剪应力的公式。算例表明，在某些情况下剪 应力必须考虑。

The cross section stress problem of variable section round bar in axial tension and compress was studied. It showed that there was shearing stress in cross section. Furthermore, a formulation of shearing stress was presented, and numerical results demonstrated that the shearing stress must be considered in some cases.