Hi All,
According to FEAP manual, St.Venant-Kirchho model (STVK) can be used as an orthotropic constitutive law.
But I tried lots of times, feeling that it can only work as an isotropic one. Also according to the FEAP manual, the input is suggested as below:
MATErial 1
SOLId
ELAStic STVE(or STVK) E nu
Finite
My question is, how should the input file be set up to make this model working as an orthotropic one, with different properties in different direction?
Thanks