Plot the strain and stress distribution epsilonxnbspand

Question

Plot the strain and stress distribution (ε_x and σ_y) through the thickness of the bimetallic analyzed in given Exercise.

Compute the curvature of the bimetallic in given Exercise when it is subjected to a change of temperature ?T = 10 °C.

Exercise

Compute the extensional [A], coupling [B], and bending stiffness [D] matrices of a bimetallic (copper and aluminum) strip with each lamina 2 mm thick. For aluminum E = 71 GP a, α = 23(10^-6 )/ °C. For copper E = 119 GP a, α = 17(10^-6 )/°C. Assume the Poisson's ratio is 0.3 for both materials.