A n-order shear deformation theory for free vibration of functionally graded and composite sandwich plates

作者：Xiang Song^*; Jin Yao xing; Bi Ze yang; Jiang Shao xi; Yang Ming sui

来源：Composite Structures, 2011, 93(11): 2826-2832.

DOI：10.1016/j.compstruct.2011.05.022

• n-Order shear deformation theory
• Free vibration
• Functionally graded plates
• Composite sandwich plates
• Natural frequencies

In the present paper, a n-order model for functionally graded and composite sandwich plate is developed. This model uses the n-order polynomial term to represent the displacement field. Zero transverse shear stress boundary conditions at the top and bottom of the plate are satisfied. The third-order theory of Reddy [8] can be considered as a special case of present n-order theory. Natural frequencies of the functionally graded and composite plates with various side-to-thickness ratios, material properties are computed by present n-order theory with different n values. The results are compared with available published results which demonstrate the accuracy and efficiency of present n-order theory.

• 出版日期2011-10
• 单位沈阳航空航天大学