Vibration and stability analysis of functionally graded sandwich beams by a multi-layer finite element
Vibration and stability analysis of functionally graded sandwich beams by a multi-layer finite element
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DOI：
10.1016/j.compositesb.2018.04.011
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发表时间：
2018-08-01
影响因子：
13.1
通讯作者：
Turan, Muhittin
中科院分区：
文献类型：
--
作者：
Kahya, Volkan;Turan, Muhittin
This paper presents a finite element model based on the first-order shear deformation theory for free vibration and buckling analyses of functionally graded (FG) sandwich beams. The present element has 3 N + 7 degrees-of freedom for an N-layer beam. Lagrange's equations are employed for derivation of the equations of motion. Two types of FG sandwich beams are considered: (a) Type A with FG faces and homogeneous ceramic core, and (b) Type B with homogeneous ceramic and metal faces and FG core. Natural frequencies and buckling loads are calculated numerically for different boundary conditions, power-law indices, and span-to-height ratios. Accuracy of the present element is demonstrated by comparisons with the results available, and discussions are made on the results given in graphs and tables for the sandwich beams considered.
