Compressive buckling behavior of laminates with interleaves of very low elastic modulus

The damping capability of fiber reinforced composite laminates can be remarkably improved by interleaving damping material sheets. However, the compressive buckling property reduces significantly due to the existence of interleaves of very low elastic modulus. The buckling loads of the composite plates with interleaves are explicitly given by assuming that only the interleaves deform due to transverse shear. The results are compared with finite element results and are found to agree well with those from a finite element analysis in spite of its simplicity. The buckling load reduction can be estimated through a nondimensional shear rigidity parameter of the interleaves.