By means of a new void - containing material model, analysis of shear localization for plastic materials is carried out.
利用新的含微孔材料模型对塑性材料局部剪切失稳进行了分析。
The reason for the size effect is shear localization, but the case that localization can not cause the size effect is not also impossible.
尺寸效应的原因是局部化，但局部化并非总引起尺寸效应。
The instability criterion due to shear localization in rock specimen system composed of shear band and elastic rock outside the band is studied.
由于剪切定位在岩样剪切带内和带外弹性岩石组成的系统的失稳判据研究。
Presumably it is due to their different critical values of the ratio of slip plane hardening rate to current tensile stress for shear localization.
这可能是由于在不同状态时产生剪切形变局部化的滑移面硬化率对瞬时拉应力的临界比值不同之故。
Presumably, it is due to their different critical values of the ratio of slip plane hardening rate to current tensile stress for shear localization.
这可能是由于它们产生剪切形变局部化的滑移面硬化率对瞬时拉伸应力的临界比值不同之故。
The deformation behavior and shear localization in truncated conic specimens of tungsten heavy alloys under impact loading are simulated by the finite element code ABAQUS.
采用有限元计算编码abaqus模拟了钨合金圆台试件在冲击载荷下的变形和剪切局部化行为。
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 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。
The influences of the shear descending modulus, the internal length parameter of rock material, the differential stress and shear stress rate on shear localization are investigated.
研究了剪切降模量及岩石材料内部长度等参数对剪切带内部应变（率）的影响。
The chip deformation of titanium alloys is typical shear localization from low cutting speed, which is general phenomenon in machining of difficult to cut material at high cutting speed.
钛合金的切屑变形从低速起就是一种典型的集中剪切滑移，这种集中剪切滑移在高速切削大部分难加工材料时是一种普遍现象。
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。
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。
The failure of rock under triaxial compression is due to the localization of narrow shear band.
常规三轴压缩过程，岩石试件破坏常常是以狭窄剪切带形式存在的局部化变形为先导。
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。
The finite deformation theory is applied to investigate the effects of boundary condition and loading speed on shear band localization of normally consolidated Fujinomori clay.
基于有限变形理论，研究了正常固结藤森黏土的边界约束效应和加载速度效应。
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。
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。
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 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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