Firstly, dissipated energies induced by axial and lateral plastic deformations due to shear strain localization initiated at peak strength in strain softening stage is analyzed.
首先，由于在应变软化阶段的峰值强度的剪切应变局部化启动的纵向和横向的塑性变形引起的耗散能进行了分析。
The approach is based on the assumption that necking mode can be modeled under plane stress conditions and shear localization can be modeled under plane strain conditions.
这种方法是以一种假设为基础的，即可以在平面应力条件下仿照缩颈模式和在平面应变条件下仿照剪切定位，材料是用弹、粘塑性物质构成的仿制品。
The location of shear strain rate localization coincides in position with the location of volumetric strain rate, which is the actual failure zone of rock.
剪切应变率（或应变）局部化区域与体积应变率（或应变）的位置重合，局部化区域就是岩样最终的破坏位置。
The reason for the sawtooth chips is that the adiabatic shear localization occurs in the primary deformation zones when thermal softening exceeds strain and strain rate hardening.
锯齿形切屑产生的原因是第一变形区内因热软化超过应变和应变率强化而发生了绝热剪切局部化。
A theoretical analysis of localized strain and strain rate in shear band after localization occurs beyond the peak shear stress is carried out based on the strain gradient plasticity theory.
应用应变梯度塑性理论对局部化剪切带内部(塑性)剪应变(率)规律进行了理论分析。
It is assumed that plastic deformation stems from the localization of shear strain.
岩样的塑性变形假设根源于塑性应变局部化。
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.
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。
The finite deformation theory and the Nakai's sub-loading constitutive model are used to investigate shear band localization in plane strain model tests.
基于有限变形理论和中井的下负荷面本构关系模型，研究了平面应变试验中黏土试样变形的局部化问题。
Furthermore, the localization shear band bifurcation takes place at the point in the strain softening area, and the point would be far from the peak point with the increment of lateral pressure.
此外，岩石材料的剪切带分叉发生在峰值应力之后，随围压增加而逐步远离峰值点。
The strain localization on a shear band induced by post-peak softening is one of the most important deformations and strength characteristics of sand.
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.
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。
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