principal shearing strain的意思|示意

It was pointed out that enough effective strain and principal shearing strain were necessary for the void closing.

同时得出，孔洞的闭合需要足够大的等效应变和剪应变。

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 strain direction.

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。