Finite element model for vibration and buckling of functionally graded sandwich beams based on a refined shear deformation theory

作者：Vo Thuc P^*; Huu Tai Thai; Trung Kien Nguyen; Maheri Alireza; Lee Jaehong

来源：Engineering Structures, 2014, 64: 12-22.

DOI：10.1016/j.engstruct.2014.01.029

• Functionally graded sandwich beams
• Vibration
• Buckling
• Finite element

Finite element model for vibration and buckling of functionally graded sandwich beams based on a refined shear deformation theory is presented. The core of sandwich beam is fully metal or ceramic and skins are composed of a functionally graded material across the depth. Governing equations of motion and boundary conditions are derived from the Hamilton%26apos;s principle. Effects of power-law index, span-to-height ratio, core thickness and boundary conditions on the natural frequencies, critical buckling loads and load-frequency curves of sandwich beams are discussed. Numerical results show that the above-mentioned effects play very important role on the vibration and buckling analysis of functionally graded sandwich beams.

• 出版日期2014-4-1