Q2. For stress limits of the composite under consideration, use the following values for S-glass epoxy unidirectional composites: X (tensile)= 1.7 GPa, X (compressive)=-675 MPa, Y (tensile)= 35 MPa, Y (compressive)= -120 MPa, S (shear) 80 MPa, to consider an appropriate failure criterion.

Fig: 1