67x
001262
2024-01-16

Stiffness Matrix for Isotropic Layer

Local stiffness matrix by layer for isotropic material
di'=d'11,id'12,i0d'22,i0sym.d'33,i=Ei1-νi2νiEi1-νi20Ei1-νi20sym.Gi i=1,...,n where Gi=Ei21+νi

;