Reference no: EM131358535
Using the results for the intact laminate in given Exercise, compute:
(a) the strains εx, εy, γxy at the interface between laminae,
(b) the stresses σx, σy, τxy on all laminae, right next to the interface,
(c) the strains ε1, ε2, γ6 by using the transformation equations,
(d) the stresses in material coordinates σ1, σ2, σ6.
Exercise
Consider a [0/45/-45]S laminate, subject to a load Nx = Ny = 1000 N/mm. Compute the [A], and [D] matrices (neglect shear deformations) for the intact laminate. Each lamina is 2.5 mm thick. Do not adjust for in-situ strength. The material properties are:
E1= 204.6 GPa
E2 = 20.46 GPa
G12 = 6.89 MPa
v12 = 0.3
F1t = 826.8 MPa
F1c = 482.3 MPa
F2t = F2c= 68.9 MPa
F6 = 241.15 MPA
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