Q: A 60 strain rosette measures the following strain at a point on the aluminum skin of
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Q: A 60˚ strain rosette measures the following strain at a point on the aluminum skin of an airplane. ϵ0 = 160 ×10-6 m/m, ϵ60 = -220 ×10-6 m/m and ϵ120 = 360 ×10-6 m/m. Using E = 10 ×106 psi and v = 0.3, Determine the principle stresses and the maximum in-plane shear stress.
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