Large amplitude free vibration of sandwich parabolic plates—Revisited

Two simplified methods were developed, one by Mazumdar [1] and another by Banerjee [2] for the study of large amplitude transverse vibration of thin homogeneous isotropic elastic plates. The present method is a modification of the above two approaches for the analysis of large amplitude transverse vibration of thin isotropic, homogeneous sandwich elastic plates of arbitrary shapes. As an illustration of the method, an interesting example of the vibration of a sandwich parabolic plate with an isotropic core is examined. Graphs corresponding to numerical results are drawn and compared with available results.