To calculate the compliance matrix[S],minor poisson’s ratio,stiffness matrix[Q] and strains in 1-2 coordinate system for unidirectional lamina

 

S=[S11 S12 0;S12 S22 0;0 0 S66]

Q=[Q11 Q12 0;Q21 Q22 0;0 0 Q66]

To find compliance matrix[S], stiffness matrix[Q], minor poisson’s ratio(ν21) and strains in 1-2 coordinate system for unidirectional lamina