On the Definition of Coefficient of Strain-rate Sensitivity

ZHAO Ya-pu; LIU Sheng

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On the Definition of Coefficient of Strain-rate Sensitivity

机译：关于应变率灵敏度系数的定义

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An attempt is made to elaborate the definition of the coefficient of strain-rate sensitivity, which is a fundamental concept for macroscopic dynamic plasticity and dislocation dynamics. Since a solid subjected to large dynamic loading usually undergoes dynamic response with finite deformation, therefore, the definition of this coefficient is also put forward to the case of large dynamic plastic deformation. The analogy between inter- nal friction increment and overstress due to strain-rate sensitivity is clarified.

机译：试图阐述应变率敏感性系数的定义，这是宏观动态可塑性和位错动力学的基本概念。由于承受大动态载荷的固体通常会经历有限变形的动力响应，因此，对于大动态塑性变形的情况也提出了该系数的定义。阐明了内部摩擦增量与因应变率敏感性而引起的过应力之间的类比。

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来源
《Chinese journal of aeronautics》 |2001年第2期|p.78-82|共5页
作者
ZHAO Ya-pu; LIU Sheng;
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原文格式 PDF
正文语种 eng
中图分类航空;
关键词
plastic strain rate; strain-rate sensitivity; overstress;

机译：塑性应变率应变率敏感性压力过大;

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1. The same strain-rate sensitivity coefficient of 1/6 demonstrated from DRX critical and steady state during hot deformation for metallic materials [J] . Ning Yongquan, Zhou Cong, Xie Bingchao, Materials Letters . 2017,第JUNa1期

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4. Strain-Rate Sensitivity Index m: Definition, Determination, Narrowness [C] . F.U.Enikeev 1997 International Conference on Superplasticity in Advanced Materials (ICSAM-97) held at the Indian Institute of Science, Bangalore on January 29 to 31, 1997 . 1997

机译：应变率敏感性指数m：定义，测定，窄度
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On the Definition of Coefficient of Strain-rate Sensitivity

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