CST2012 Proceedings paper 49

Abstract In this paper a new finite element model for the analysis of sandwich laminated plates with a soft core and composite laminated face layers is presented. The model is formulated using a mixed layerwise approach, by considering a higher order shear deformation theory (HSDT) to represent the displacement field of the compressible core and a first order shear deformation theory (FSDT) for the displacement field of the adjacent laminated face layers. The model is validated for free vibrations with results from the literature and the effect of the core transverse compressibility is assessed on modal damping