平面问题主应力与主应变方向确定的简捷方法

An Easy Way to Determine the Directions of the Principal Stresses or Strains in Plane Problem

平面应力和平面应变状态下主应力和主应变方向的确定,无论是在工程应用还是在材料力学教学中都是非常重要的难点。本文提出了一种既易于理解又便于掌握的简捷实用方法。

It is very difficult to determine the directions of the principal stresses or strains in plane problem for teaching material mechanics and engineering application. In this paper, an easy way is presented to solve such problems.