期刊论文详细信息
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 卷:49
A new trigonometric shear deformation theory for isotropic, laminated composite and sandwich plates
Article
Mantari, J. L.1  Oktem, A. S.1  Guedes Soares, C.1 
[1] Univ Tecn Lisboa, Inst Super Tecn, Ctr Marine Technol & Engn CENTEC, P-1049001 Lisbon, Portugal
关键词: Trigonometric shear deformation;    Higher order theory;    Isotropic plates;    Composite plates;    Sandwich plates;   
DOI  :  10.1016/j.ijsolstr.2011.09.008
来源: Elsevier
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【 摘 要 】

A new trigonometric shear deformation theory for isotropic and composite laminated and sandwich plates, is developed. The new displacement field depends on a parameter m, whose value is determined so as to give results closest to the 3D elasticity bending solutions. The theory accounts for adequate distribution of the transverse shear strains through the plate thickness and tangential stress-free boundary conditions on the plate boundary surface, thus a shear correction factor is not required. Plate governing equations and boundary conditions are derived by employing the principle of virtual work. The Navier-type exact solutions for static bending analysis are presented for sinusoidally and uniformly distributed loads. The accuracy of the present theory is ascertained by comparing it with various available results in the literature. The results show that the present model performs as good as the Reddy's and Touratier's shear deformation theories for analyzing the static behavior of isotropic and composite laminated and sandwich plates. (C) 2011 Elsevier Ltd. All rights reserved.

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