The main factors such as pressure, the third invariant of stress tensor, strain hardening and softening, stain rate and tensile damage have been taken into account in the constitutive model.
该本构模型全面考虑了压力、应力第三不变量、变形的硬化和软化、应变率强化以及拉伸损伤等各个影响因素。
The models in common use with elastoplastic analysis of rock mass, conception of critical state and the cap models that reflect strain hardening (or softening) of rocks are discussed.
介绍了岩体弹塑性分析常用的模型、临界状态的概念以及反映岩石塑性应变硬化(及软化)的帽式模型。
The results showed that the characteristics of cyclic hardening or softening depend to the strain loading paths and the loading parameters.
研究结果表明，低周拉扭疲劳加载下，拉与扭应力响应的硬化与软化特性取决于应变加载路径和加载参数。
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 model includes the effect of strain rate sensitivity, strain softening and strain hardening.
该模型包括了应变率敏感性效应，应变软化效应和应变硬化效应。
Its cyclic properties first show cyclic softening, after stabilizing, then cyclic hardening. The state of cyclic softening and cyclic hardening will vary along with strain level.
其循环相关特性表现为先循环软化，稳定后又发生循环硬化，而且循环软化和循环硬化的程度随控制应变的不同而不同。
A new theoretical interpretation for the strain softening and hardening effects, which were caused by the interior hysteresis nature of viscoelastic deformation.
对应变软化-硬化效应提出一种新的起因于粘弹变形内禀滞后效应的理论解释，并定名为粘弹软化-强化效应。
The stress - strain relationship of soil estabished from shear tests is distinguished into two kinds-progressive hardening type and post-peak softening type.
将土的剪切试验测得的应力-应变关系分成逐渐硬化类型和峰值后软化类型，提出了可以统一表示这两种类型应力-应变关系的表达式。
Further more, a damage softening constitutive model is set up in which the effect of fiber reinforcing and strain-rate hardening are considered.
并建立了一种包含纤维增强效应和应变率增强效应在内的损伤本构模型。
Saturated loess stress-strain curve has obvious nonlinear features, and more saturated as the softening of loess, loess saturated remodeling mostly stable and hardening;
饱和黄土的应力-应变曲线具有明显的非线性特性，且饱和原状黄土多为软化型，饱和重塑黄土多为稳定型和硬化型；
Power law model can describe both strain-hardening and strain-softening behaviors, which can be used effectively to model stress-strain relationship of coarse-grained materials.
幂律模型既能反映硬化特性又能模拟双曲线模型不能反映的应变软化关系，因而能合理地反映粗粒料的应力应变关系。
Power law model can describe both strain-hardening and strain-softening behaviors, which can be used effectively to model stress-strain relationship of coarse-grained materials.
幂律模型既能反映硬化特性又能模拟双曲线模型不能反映的应变软化关系，因而能合理地反映粗粒料的应力应变关系。
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