Free Vibration Analysis of Foam-Core Sandwich Structures

In this paper, the free vibration analyses of aluminum-foam sandwich structures were completed numerically. Foam and aluminum (Al) used for core surface layers structure, respectively. addition, an adhesive was as a thin film. Natural frequencies mode shapes structure obtained different thickness materials. For this, three structures, with same thickness, modeled SS1, SS2 SS3. Analyses performed by ABAQUS/Standard finite element software. The increase in Al layer generally caused decrease frequency, but is not very dramatic. has serious frequency structure.