i have an important qustion
i want to know how to transform the thermal expansion coeffcient tensor (alpha) 6x6 when the fiber orientation changed from 0 to 30 degree for example? are there any equations for that ? how i can reduce this tensor from 6x6 to 3x3 ?
Dear
i have lamina with orthotropic properties how i can derive an expression for Gxy (equivalent shear stress) in terms of E1, E2,v12,G12, and theta ????
where: E1: is the elastic modulus at the fiber direction
E2: elastic modulus at transverse direction
v12: is the main possion ratio...