A new higher order shear deformation theory for sandwich and composite laminated plates
- 作者：J.L. Mantari ; A.S. Oktem ; C. Guedes Soares ; guedess@mar.ist.utl.pt
- 关键词：A. Glass fibers ; A. Laminates ; C. Analytical modeling ; Higher order shear deformation theory
- 刊名：Composites Part B ; Engineering
- 出版年：2012
- 期刊代码：18_13598368
- 类别：ms
- 出版时间：April, 2012
- 卷：43
- 期：3
- 页码：1489-1499
- 文件大小：513 K
摘要
A new shear deformation theory for sandwich and composite plates is developed. The proposed displacement field, which is 鈥渕鈥?parameter dependent, is assessed by performing several computations of the plate governing equations. Therefore, the present theory, which gives accurate results, is relatively close to 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.