Based on the rigid plastic constitutive equation of lead, the damping force model of lead extrusion damper was deduced from the even plastic deformation energy method.
本文根据铅的刚塑性本构关系，利用均匀塑性变形能法，推导了铅挤压阻尼器的阻尼力滞回模型。
Both the trend and the simulation data agree well with the experimental results, which affirms that the established plastic constitutive equation of milled powders is reasonable.
该趋势和模拟数值均与挤压实验结果基本一致，验证了所推导的球磨粉体本构方程的合理性。
Introducing the plastic strain the differential constitutive equation for viscoelastic and plastic materials is deduced from multi-integral constitutive equation for nonlinear viscoelastic materials.
本文从非线性粘弹性物质的多重积分型本构方程出发，引入塑性应变，推导了粘弹塑性物质的微分型本构方程。
Thus, it becomes unnecessary to give the constitutive equation for the plastic spin.
这就使给出塑性旋率本构方程变得不必要了。
Thus, it becomes unnecessary to give the constitutive equation for the plastic spin.
这就使给出塑性旋率本构方程变得不必要了。
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