Methods Nonlinear dynamical behavior of both parabolic equation and elliptic equation were investigated by several tools such as Poincare section, Lyapunov exponent, and correlation dimension.
方法利用庞加莱截面、李雅普·诺夫指数、关联维等工具分别对抛物方程和椭圆方程的非线性动力学行为进行描述。
The strain fields in damage zone around crack-tip are measured for different strain hardening exponent material specimens with double edge cracks using digital speckle correlation technique.
为了研究粘性效应作用下的扩展裂纹尖端场，假设扩展裂纹尖端的人工粘性系数与塑性应变率的幂次成反比，推导出理想弹塑性材料的一种率敏感型本构关系。
The strain fields in damage zone around crack-tip are measured for different strain hardening exponent material specimens with double edge cracks using digital speckle correlation technique.
为了研究粘性效应作用下的扩展裂纹尖端场，假设扩展裂纹尖端的人工粘性系数与塑性应变率的幂次成反比，推导出理想弹塑性材料的一种率敏感型本构关系。
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