Compound layers of 5 polyamine matrix [0/45/-37], each 4 mm thick, and 65% by volume continuous aramid fibers were subjected to Nx = Ny = 800 N/m loading. The engineering constants of aramid fibers are: EF = 124 GPa, v = 0.36, GF = 3 GPa. Likewise, the engineering constants of the polyamine matrix are: Em = 3.5 GPa Gm = 1.3 GPa, v = 0.35

a) Compliance and reduced stiffness of each layer of this multilayer composite Calculate their values and represent them as [S] and [Q] matrices.

b) Calculate [A][B] and [D] matrices,

c) Calculate mid-plane deformations and 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 (%).