这种由软化特性引起的应变局部化剪切带是砂土材料非常重要的变形和强度特性之一。
The strain localization on a shear band induced by post-peak softening is one of the most important deformations and strength characteristics of sand.
在平面应变压缩条件下，砂土在峰值应力状态附近出现应变局部化现象，在残余状态最终形成一条V型剪切带。
Under plane strain condition, the strain localization starts around the peak stress state; and a V-shaped shear band is formed at the residual stress state.
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