QHGG 发表于 2008-5-1 22:57:50

应变张量不变量对张量的导数怎么求？是多少？

I1 = first principal invariant of M,
I2 = second principal invariant of M,
I1 = third principal invariant of M,

then what is the derivative d(I1)/d(M)? and d(I2)/dM? and so on?

Thank you for help

scuxiongj 发表于 2008-6-10 23:30:45

比较复杂，你可以参考《张量分析》（黄克智著）的P122。
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