The 45° strain rosette is mounted on a surface of the bracket . The bracket is made from steel with Esteel = 120 GPa and poison ratio, v = 0.28. The following readings are obtained for each gauge under loadings: Ɛa = [ X+Y ] (10-6) Ɛb = -200(10-6) Ɛc = -180(10-6) x=100,  y=100 (a) Prove that Ɛx = Ɛa and Ɛy = Ɛc. (b) Determine the shear strain, γxy and the normal strain, Ɛx and Ɛy.

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