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jfriedlein / usrmat_LS-Dyna_Fortran

Basics to implement user-defined materials (usrmat, umat) in LS-Dyna with Fortran
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LS-Dyna push_forward_4s #3

Open jfriedlein opened 4 years ago

jfriedlein commented 4 years ago

The push-forward for the material tangent cannot be reproduced by the "known" contravariant PF for the tangent.