期刊
COMPOSITE STRUCTURES
卷 93, 期 11, 页码 2826-2832出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2011.05.022
关键词
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. (C) 2011 Elsevier Ltd. All rights reserved.
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