小变形梯度乘法分解(极分解)的推导

nlj

那个忽略二阶微量给出来的是比较突兀，请问具体的推导是什么，谢谢。

请点击图片显示出大图查看书上所给的推导。

nlj

自己顶一下，请高手给解答一下吧，谢谢。

tonnyw

dx_i = (delta_ik + omega_ik)*(delta_kj + E_kj)*da_j
       = (delta_ij + E_ij + omega_ij + omega_ik*E_kj)*da_j
It can be seen that if we drop the term omega_ik*E_kj which is higher order term, we have
dx_i =  (delta_ij + E_ij + omega_ij)*da_j
So I think the book has something wrong. It should be put the following way:
If we don't neglect higher order term, we should have
dx_i = (delta_ik + omega_ik)*(delta_kj + E_kj)*da_j

kaiyunjianqing

帮顶一下~~~希望高手来解决！~~~