考虑结构弹塑性特性后，冲击压力计算结果小于弹性冲击压力，更符合实际情况。
The impact force considering the elastoplastic deformation of structures can be far less than the elastic result. This new method matches the practice better.
在晶体滑移系上引入与材料即时响应有关的塑性阻尼器及与材料粘性有关的牛顿阻尼器以计及材料滑移系的粘塑性特性。
Plastic dashpots reflecting the material transient response and Newton dashpots mirroring the material viscosity are introduced to describe the viscoplasticity of slip systems.
提出了压痕实验与有限元仿真结合的方法。它采用压痕深度与有限元仿真深度进行对比，可求解出KDP晶体的塑性特性参数。
A method combining indentation test with finite element simulation is proposed to obtain the ductile parameters of KDP crystal by comparing indentation depth with finite element simulation depth.
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