The engineering constants for an orthotropic material are found to be

$E_1=6$Msi,$E_2=7$Msi,$E_3=2$Msi

$v_{12}=0\mathrm{.}2,v_{23}=0\mathrm{.}4,v_{31}=0\mathrm{.}6$

$G_{12}=4$Msi, $G_{23}=3$Msi, $G_{31}=3\mathrm{.}1$Msi

Find the stiffness matrix $[$C$]$ and the compliance matrix $[$S$]$ for the preceding orthotropic materials.