Buckling analysis of skew fibre-reinforced composite laminates based on first order shear deformation plate theory

摘要

This paper presents a B-spline Rayleigh-Ritz method (RRM) based on first-order shear deformation plate theory (SDPT) for buckling analysis of skew fibre-reinforced composite laminates which are important structural elements in modern engineering structures, particularly in the aerospace industry. The laminates considered may have arbitrary lay-ups, admitting the possibility of coupling between in-plane and out-of-plane behaviour and general anisotropy. Various numerical applications arc conducted and the method is proved to be accurate and efficient. It is observed that the effect of through-thickness shear deformation is very large for moderately thick skew laminates and increases with the increase of skew angles.