Question: An angle composite laminate [ + 4 5 / - 4 5 ] 3 2 S has the following stiffness matrices and subjected to Nxx

An angle composite laminate [+45/-45]32S has the following stiffness matrices and subjected to Nxx =0.1 N/mm.The ply thickness is 0.013mm.Determine the stresses in each layer of the laminate.
=-45deg: Q11=40.11GPa, Q22=40.11GPa, Q12=33.61GPa, Q66=34.57GPa, Q16=-31.3GPa, Q26=-31.3GPa
=+45deg: Q11=40.11GPa, Q22=40.11GPa, Q12=33.61GPa, Q66=34.57GPa, Q16=31.3GPa, Q26=31.3GPa
(Reference "FIBER REINFORCED COMPOSITES: Materials, Manufacturing, and Design 3rd"edition chapter 3example 3.6& problem 3.48)

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