从单元体表面应力状态判断主应力方向的两种简便方法

The two simple ways of judging the major stress direction under the plane stress of the unit body

介绍了确定平面应力状态主应力方向的两种简便方法,即分别可由单元体上的剪应力和正应力去判断主应力方向,并论证了两种方法的正确性。

The paper presents an introduction of the two simple ways of deciding the major stress direction under the plane stress, that is, to judge the major stress direction through the shearing stress and straight stress on the unit body, and proves the correctness of the two ways.