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In Type A only the face sheets are functionally graded. In Type B the entire wall is functionally graded
From:
Adelaja I. Osofero, Thuc P. Vo, Trung-Kien Nguyen and Jaehong Lee (various organizations),
“Analytical solution for vibration and buckling of functionally graded sandwich beams using various quasi-3D theories” , Journal of Sandwich Structures & Materials, Vol. 18, No. 1, pp 3-29, January 2016, https://doi.org/10.1177/1099636215582217
ABSTRACT: This paper presents an analytical solution for vibration and buckling of functionally graded (FG) sandwich beams using various quasi-3D theories, which consider effects of both shear and normal deformation. Sandwich beams with FG skins–homogeneous core and homogeneous skins–FG core are considered. By using the Hamilton’s principle, governing equations of motion are derived. An analytical solution is presented, and the obtained results by various quasi-3D theories are compared with each other and with the available solutions in the literature. The effects of normal strain, power-law indexes, skin–core–skin thickness and slenderness ratios on vibration and buckling behaviour of sandwich beams are investigated.
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