Non-stationary oscillations of sandwich plates under local dynamic loading

The paper addresses the elastic response of composite sandwich panels to local\ud dynamic loading. The plane and axisymmetric formulations are considered; no\ud overall bending is assumed. The governing equations are derived using the static\ud Lamé equations for the core and the plate Kirchoff-Love dynamic theory for the\ud faces. The closed form solutions for the non-stationary excitation are obtained\ud using integral transformations technique. The solutions allow to predict the stressstrain state of the structure and are in good agreement with finite element analysis