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2) Compound layers of [0/45/-37]s, each 4 mm thick, composed of 65% by volume continuous aramid fibers and 35% polyamine matrix, were subjected to Nx
2) Compound layers of [0/45/-37]s, each 4 mm thick, composed of 65% by volume continuous aramid fibers and 35% polyamine matrix, were subjected to Nx = Ny = 800 N/m loading. The engineering constants of aramid fibers are: EF = 124 GPa, f = 0.36, GF = 3 GPa. Likewise, the engineering constants of the polyamine matrix are: Em = 3.5 GPa, Gm = 1.3 GPa, f = 0.35. a) Calculate the compliance and reduced stiffness values for each layer of this multilayer composite and represent them as [S] and [Q] matrices. b) Calculate the matrices [A], [B] and [D], c) Calculate the midplane deformations and the slope values. d) Calculate the principal and axial stresses in the upper plane of the third layer (layer -37). e) Calculate the contribution of each layer to the Nx and Ny loadings as a percentage (%)
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