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

✍ Scribed by Song Xiang; Yao-xing Jin; Ze-yang Bi; Shao-xi Jiang; Ming-sui Yang

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 229 KB
• Volume: 93
• Category: Article
• ISSN: 0263-8223
• DOI: 10.1016/j.compstruct.2011.05.022

✦ Synopsis

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.