Mechanics of Composite Materials OCW

Quiz: Section 2.7 Invariant Forms of Stiffness and Compliance Matrices for Angle Lamina

For a 0° degree angle ply, the transformed reduced stiffness matrix Q11 written in terms of the invariants is given by
   (A)   U1
   (B)   U1+U2+U4
   (C)   U1+U2+U3
   (D)   U1+U2

For a 0° degree angle ply, the transformed compliance matrix S11 written in terms of the invariants is given by
   (A)   V1+V2+V4
   (B)   V1+V2+V3
   (C)   V1
   (D)   V1+V2