3.24 Lagrange Strain Tensor

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This is one of the most important of the finite strain measures. This Lagrange Strain tensor  needs to be used whenever the strain is not infinitesimal and/or when there is rigid body rotation during the deformation. As defined in the previous section, if is the Green deformation tensor then,

where is the Lagrangian Finite Strain tensor. If there is no deformation (or rigid body rotation), then leading to .

Note that  can also be expressed as follows:

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10/04/01 0:35:52