Ply-Level Modulus Calculator Leave a Comment / By GULSHAN SHAFI / March 3, 2024 Ply-Level Modulus is a Elastic stiffness of single composite layer.The formula is given by: Where: Eply​ is the ply-level modulus (elastic modulus), F is the applied force or load, and ε is the corresponding strain or deformation experienced by the ply. Related