1) rate-dependent plasticity model
应变率相关塑性模型
1.
Because the deformation process of voids inside the material can not be observed in dynamic shock experiments,the micro void deformation in pure aluminum is simulated under the shock compression by supposing three matrix material models,including the bilinear model,the plasticity kinematic model and the strain rate-dependent plasticity model.
采用了3种材料模型:双线性模型、塑性随动模型和应变率相关塑性模型,分别模拟了它们在冲击压缩下内部微孔洞的塌陷,并对结果作了详细的比较。
3) rate-dependent plasticity
率相关塑性
1.
A phenomenological model,including nonlinear elasticity(equation of state),rate-dependent plasticity,and void nucleation and growth,was proposed to simulate deformations of U-6%Nb alloy under the condition of high strain rate.
采用一种唯象模型来模拟铀铌合金在高应变率条件下的变形行为,该模型包括了材料的非线性弹性(状态方程)、率相关塑性和孔洞的形核及生长等多种效应。
2.
A phenomenological model,which includes nonlinear elasticity(equation of state),rate-dependent plasticity,and void nucleation and growth,is provided for modeling the spallation behavior of tantalum.
该模型包括了材料的非线性弹性(状态方程)、率相关塑性和孔洞的形核及生长等多种效应,并且采用一种对角隐式Runge-Kutta方法来求解本构率方程组,提高了热粘塑性本构关系计算的稳定性及精度。
4) plastic strain rate
塑性应变率
1.
By analyzing some mechanical quantities and typical dynamic testing results for similar models, this paper studies the scale effect pertaining to similar models made of strain-rate dependent materials, and also describes the effect of plastic strain rate on the mechanical behavior of similar models under dynamic loading.
通过对相似模型中若干力学量和典型动力学实验中部分结果和结论的探讨分析，研究了动态载荷下率相关材料相似模型的尺度效应，阐述了塑性应变率具有的尺度效应对相似模型在动态载荷下的影响，指出了塑性应变率尺度效应的一个重要特征是，随着结构特征尺度的减小，其动力行为的应变率敏感效应增强。
6) strain rate dependent
应变率相关
1.
And the strain rate dependent behavior of HDPE strip stress-strain relationship was analyzed.
通过条带拉伸试验,分析了高密度聚乙烯(HDPE)片材的拉伸应力-应变关系,指出了该关系的应变率相关特性,并对HDPE片材的拉伸模量、最大拉伸应力、最大拉伸应力对应的拉伸应变、泊松比等物理力学参数与拉伸应变率的关系进行了详细分析,给出了HDPE片材应变率相关的应力-应变数学模型及其参数的物理意义。
补充资料：应变硬化率
strainhardeningrate：表示应变硬化的程度，即表示塑性变形阻力（继续塑性变形所需外应力）随塑性变形量的增大而增加的现象的程度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条