In calculating, powerhardening function is used as the true stress - strain curve of materials.
计算时，板料的真实应力-应变曲线拟合为幂强化函数型。
2
Analytical results show that the transformation is effective except for a special - limit case of powerhardening media-the ideal plastic materials.
分析结果表明：除幂硬化材料的极限情况——理想塑性外，此变换有效。
3
The bifurcation problem of dynamical formation and growth of cavity in a sphere composed of a powerhardening material and a hyper-elastic material is discussed in this paper.