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Question: a thin aluminum plate had a line of initial length...

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A thin aluminum plate had a line of initial length 2in scribed in the x direction, at an angle of 75° to the horizontal. Aluminum has a modulus of E 10 x 106psi has a Poissons ratio of v 0.3. After loading the e by an x direction stress of 40ksi and an unknown y direction stress of Ơy, it was discovered that the line 1 changed in length by 0.006in a) Determine the x-y plane strain state (i.e., y, Yy) in -L x, terms of Ơy. b) What is the axial strain in the direction (i.e., in the direction of the scribed line)? c) Determine Ơy

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