本文通过变分途径建立了变形梯度张量的极分解和加法分解之间的联系。
Through a variational approach, the passage from the additive decomposition to polar decomposition of deformation gradient has been completed.
最后通过近似分析，给出了在小变形中等转动情况下转动张量和伸长张量的近似表示。
Finally, through the approximate analysis, the approximate representation on the rotation tensor and stretch tensor is proposed.
最后通过近似分析，给出了在小变形中等转动情况下转动张量和伸长张量的近似表示。
Finally, through the approximate analysis, the approximate representation on the rotation tensor and stretch tensor is proposed.
应用推荐