Voigtstrain

Import a strain array in voigt storage. As this Module does not use doubled shear items for the symmetric voigt-like storage a strain-like array has to be imported rather than assigned to a Tensor.

• ndi number of direct compononets
• nshear number of shear components
• ngens dimension of strain array

Property	Value
Result	Tensor-valued function
Input	E(ngens), ndi, nshear, ngens
Output	Tensor2s

Example

       integer :: ndi,nshear,ngens
       real(kind=8), dimension(ngens) :: e

       type(Tensor2s)  :: C, Eye

       Eye = identity2(Eye)
       C = Eye + 2.*voigtstrain(e,ndi,nshear,ngens)