Hello trilbytim,
Do I have to convert any isotropic materials to equivalent orthotropic properties?
Yes, see U4.42.03 Operator DEFI_COMPOSITE in 3.1.2 Operand MATER:
The concept MY the material constitutive of the layer contains and is produced by the
operator DEFI_MATERIAU under the keyword factor ELAS_ORTH.
See for example test sdls503a.comm
Thanks for this example and example Assign properties to elements indivdually
It helped me to define some ELAS_ORTH problem.
I started to write some answers but You solved it!
Stano
