这里讨论的是,对于各向同性且小变形的弹性体的平面应力状态,通过广义虎克定律把应变圆与应力圆直接联系起来。得到的结论是,只要把应变圆的纵坐标轴作适当平移,同时采用新的比例尺系数,便可把移轴后的应变圆直接读为应力圆。 The discussion here is that, for the plane stress state of an isotropic and small-deformed elastic body, the strain circle is directly related to the stress circle by the generalized Hooke’s law. The conclusion is that as long as the ordinate axis of the strain circle is properly translated and a new scale factor is used, the strain circle after the axis shift can be directly read as a stress circle.