Consider an orthotropic e$-$glass $/$epoxy composite cube of dimensions $100mm100mm100mm.$ The cube

is subjected to an extension in the $2-$direction of $0\mathrm{.}6$ mm and is constrained against contraction in the $3-$direction.

Calculate the stress and strains in all the principal directions. Given data: $E_1=210$GPa,$E_2=E_3=5\mathrm{.}6$GPa,

$G_{12}=G_{13}=4\mathrm{.}1$GPa,$G_{23}=1\mathrm{.}7$GPa,

$u{?}_{(}()()12)=$

$u{?}_{(}()()13)=0\mathrm{.}25,$

$u{?}_{(}()()23)=0\mathrm{.}44$