The principal strains at a point on the aluminum surface of a tank are 1 =

Question:

The principal strains at a point on the aluminum surface of a tank are ε₁ = 630(10^-6) and ε₂ = 350(10^-6). If this is a case of plane stress, determine the associated principal stresses at the point in the same plane. E_al = 10(103) ksi, ν_al = 0.33. Hint: See Prob. 10–30.