Consider PE fiber$/$epoxy UD composite exposed to T $=-25\backslash$deg C$.$ The compositewas manufactured at $75\backslash$deg C$.$ Calculate the thermal stresses in fibers and matrix. Validate your calculation by force balance equation. Assume the following properties:$10.$a$)$ E$($f$)=110$GPa,Em$=3$GPa,Vm$=0,4,$af$=-10\mathrm{.}10^-61/$oC$,$am$=60*10^-6$