1. An E-glass/epoxy lamina is subjected to the state of stress shown. Determine if failure occur according to the maximum stress, maximum strain, Tasi-Hill and Tsai Wu failure criteria with Fiz F12 F11 F22 Assuming a fiber orientation of (a) 30 (b) -30 and (c) 60. For E-Glass/epoxy: E1-8.8x10 psi, E2=3.610 psi, G12=1.7410 psi,v12=0.23, X=187 ksi, Xc=119ksi,Y=6.7ksi, Ye=25.3ksi and S=6.5 ksi 10 ksi 5 ksi 15 ksi Hint: One can rewrite the Tsai-Wu criteria using the parameter F*12 such that: F110 + 2F12 F11F22 0102 + F22 + F660 + F0 + F202 = 1