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。
Test results show that for the stress-strain curves with no obvious peak strain, it is a available to use work hardening rate method to determine peak strain and stable strain.
实验结果表明，对于无明显峰值应变的应力-应变曲线，采用加工硬化率方法确定峰值应变和稳态应变是一种有效的方法。
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 higher initial strain hardening rate and higher strength of dual phase are attributed to rapid strain hardening in ferrite and the load transfer from the ferrite to martensite.
铁素体迅速应变硬化和铁素体到马氏体的载荷传递使双相钢具有较高的初始应变硬化速率和较高的强度。
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 experimental results indicate that all hydrogenated titanium alloy TC4 specimens exhibit a distinct heat softening effect, but that the strain rate hardening effect is comparatively weak.
结果表明，置氢tc 4钛合金具有较强的热软化效应，而应变率强化效应则相对较弱。
The PP with high grafting rate can improve the melt strength and the extensional viscosity of a PP system and the strain hardening.
接枝率高的PP，可提高PP体系的熔体强度和拉伸黏度及其应变硬化。
Raising the testing strain rate, the strength and yield ratio increased the plasticity slightly decreased, but the strain rate hardening index kept constant.
应变率增加，材料强度提高，屈强比增大，塑性略有降低，但流变阶段应变率强化系数基本不变。
Based on crystalline plasticity slip and strain hardening model, a rate-independent polycrystalline plasticity model was developed and introduced into finite element method.
基于晶体塑性变形的滑移机理和微观硬化机制，建立了相应的运动学描述和基于率无关的晶体本构方程。
The results show that the granite has strain rate effect, hardening effect and jumping behaviors of stress-strain curve.
结论表明，在此应变率段花岗岩材料具有明显的应变率硬化效应，峰值应力前应力-应变曲线的跃进特性。
The stress increased slowly with strain increased when strain was above 5%, and work hardening rate decreased.
当应变量大于5%时，应力随着应变的增加而缓慢增加，加工硬化速率降低。
It takes into account the influences of geometrical nonlinearities due to large, deflection and material nonlinearities due to plasticity, strain-hardening and Strain-rate Sensitivity.
分析中考虑了大位移引起的几何非线性；塑性、应变强化及应变率效应引起的材料非线性的影响。
The results show that the grain size have a obvious influence on strain-hardening rate and fracture behavior.
结果表明 ，晶粒尺寸对应变硬化率及断裂行为有显著的影响 ；
The results show that the grain size have a obvious influence on strain-hardening rate and fracture behavior.
结果表明 ，晶粒尺寸对应变硬化率及断裂行为有显著的影响 ；
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