Design of laminates by a novel “double–double” layup

We introduce the double–double composite layup method and highlight its advantages over current industry standard method. Proof that (DD) can significantly reduce required number of plies in laminates therefore weight structures is provided. The 4-ply [± ??± ?] sub-laminates also make design manufacturing processes simpler less prone to error compared conventional (quad) layups. Layup homogenization makes novel a viable option by mitigating warpage non-symmetric investigated both analytically experimentally prove effectiveness.