This paper introduces a new way for defining the maximum principalstraindirection in plane strain condition.
本文介绍了一种确定平面应变中最大主应变方向的新方法。
2
An equation for the calculation of true shear strain was derived from the integration of infinitesimal shear strain in plane shearing process with constant principal shear straindirection.
对切应变主轴不变的平面简单切变过程，通过无穷小应变的积分，导出了真实切应变计算公式。
3
The theoretical result shows that the direction of plastic strain increment is determined by the direction of principal stress and stress increment.