Compression Test of Composite Sandwich Panel
Composite materials are used in aerospace structures due to their considerable bending stiffness and strength-to-weight ratio. A composite sandwich is composed of a face-sheet and an aluminum core. The face-sheet of the sandwich takes the bending stress and core of sandwich takes the shear stress. A compression test and FEM analysis accomplished about composite sandwich panels that have curvature. The FEM analysis was performed using a commercial code, ANSYS and the compression test was performed until failure occurred in the sandwich panel. A strain gauge and a displacement gauge were used to acquire the data. In this paper, the failure strength and failure mode was checked. Additionally, the results of the test and analysis were compared.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
J. W. Lee et al., "Compression Test of Composite Sandwich Panel", Key Engineering Materials, Vols. 348-349, pp. 605-608, 2007