Comments on "Sigmoid functionally graded plates embedded on Winkler-Pasternak foundation: Free vibration analysis by dynamic stiffness method"

被引：0
|
作者：
Kumar, Raj [1 ]
Jana, Prasun [1 ,2 ]
机构：
[1] Indian Inst Technol, Dept Aerosp Engn, Kharagpur 721302, West Bengal, India
[2] Indian Inst Technol, Dept Aerosp Engn, Kharagpur 721302, India
来源：
COMPOSITE STRUCTURES | 2023年 / 325卷
关键词：
Free vibration; S-FGM plate; Elastic foundation; Classical plate theory; Dynamic stiffness method;
D O I：
10.1016/j.compstruct.2023.117619
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
As comments to the paper in Composite Structures 288 (2022) 115400, the present article shows that the mathematical formulation presented for the vibration analysis of sigmoid functionally graded (S-FGM) plates resting on elastic foundation is not correct in its present form. It is shown that the incorrect formulation has resulted in considerable error in the reported results of the paper. In this note, possible mistakes of the mathematical formulation of the paper have been identified, and corrections are proposed.
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页数：5
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