An antisymmetric angle-ply \([+\theta /-\theta]\) laminate is to be made of carbon/ epoxy and designed to have a laminate CTE, \(\alpha_{x}\) as close to zero as possible. Determine the ply orientation \(\theta\) needed to meet this requirement. The lamina properties are as follows:

This Problem requires extensive calculations, and the use of a computer is recommended.

Transcribed Image Text:

E = 138 GPa, E28.96 = 8.96 GPa G12 7.1 GPa = V12 = 0.3 laminate thickness = 0.125 mm = -0.3 10 6 m/m/K = 28.1 106 m/m/K