以Hart的微分型本构关系为基础,本文推导出了一个既包含应变硬化效应(n)又包含应变速率敏感效应(m)的m-n-δ关系式δ=[1/(1-(1-α(0))~(1/m))]~m×e~n-1当n=0时,它吻合于Ghosh和Ayres的现代分析,当m=0时,吻合于Considère的经典分析.该公式的计算结果和实验结果一致.
Based on the Hart's differential constitutive equation,an attempt was made toderive an expression for the correlation among m-n-δ including the effects of boththe strain hardening,n,and strain-rate sensitivity,m,as follow:(?)and the simplified form:(?)It was found that this expression is in agreement with the current analysis of them-δ relations given by Ghosh and Ayres,or with the classical analysis by Con-sidère while n=0 or m=0 respectively.The calculated results of abovementionedexpression in contrast to experiments are coincidence.
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