The generalized plastic mechanics is not adaptable to explain the geo-tech strain localization.
广义塑性力学不适宜于解释岩土应变局部化现象。
And then, the so_called equivalent length is redefined by using the basic concept of modeling of strain localization.
等效长度的概念具有了明确的物理含义,且几个基本模型在理论基础上达到一致。
Strain localization of rock sample in uniaxial compression is the result of self-organization of deformation during loading.
应变局部化是加载过程岩样内部变形自组织的结果。
It was shown that the deformation was concentrated due to loading, which demonstrated the occurrences of strain localization in the slope.
加载导致土坡在某些位置出现变形集中,意味着这些位置发生了应变局部化。
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。
Strain localization is a very important subject in rock and soil mechanics; the influence of strain localization on slope stability must be considered.
应变局部化问题已经成为岩土力学研究的一个重要课题,边坡的稳定性分析必然要考虑这种应变局部化对边坡的稳定性影响。
In contrast, the subbasins in the stress shadow became inactive and dead as a result strain localization on the linked through-going basin-bounding faults.
与此同时,由于应力逐渐集中在大型次级盆地边界断层之上,处于应力影中的次级盆地停止发育。
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。
Study of tests for measuring lateral strain localization of undisturbed clay in the condition of plane strain compression was rarely reported at home and abroad.
原状粘性土在平面应变条件下量测侧向局部变形的试验研究国内外鲜见报导。
The numerical method for modeling strong (displacement) as well as weak (strain localization) discontinuities with a standard finite element framework is presented.
据此,给出了这种在常规有限元框架下可模拟强不连续问题(位移)和弱不连续问题(应变局部化)的数值方法。
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。
Numerical analyses of plane strain compression tests for the geogrid-reinforced sand specimens were conducted by the nonlinear elastoplastic FEM considering strain localization.
利用可考虑局部破坏的非线性弹塑性有限元,对无加筋和加筋砂土的平面应变压缩试验结果进行了从小变形到破坏的全过程数值解析。
Strain localization and macroscopically mechanical behaviors of rock specimen with and without material imperfection in plane strain compression were modeled numerically by FLAC.
在平面应变压缩条件下,采用拉格朗日元法研究了材料缺陷对岩样应变局部化及宏观力学行为的影响。
The trace algorithm proposed does not request the continuity of strain localization propagation paths, and the interaction among localization band segments can be taken into account.
该算法不要求追踪路径的连续性,并可充分考虑各局部化带间的相互影响。
Analytical solution of complete stress-strain curve of rock specimen in uniaxial tension is proposed based on gradient-dependent plasticity considering strain localization initiated at peak strength.
基于梯度塑性理论,考虑了应变局部化,提出单轴拉伸条件下岩样全程应力—应变曲线解析解。
Based on the nonlocal theory the correlation is studied between the nonlocal kernel function and the simulating result for the strain-localization behavior of brittle materials.
在非局部理论框架下,研究了应变局部化现象模拟结果与所用非局部核函数的相关性。
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。
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 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 results of emulation indicate that damage features formed by mode strain energy ratio are feasible to identify the structure damage localization and damage severity.
仿真结果表明,模态应变能比对结构损伤位置和损伤程度都比较敏感,是一种有效的损伤标识量。
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 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。
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。
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