Enhanced modeling of laminated and sandwich plates via strain energy transformation

被引：34

作者：

Kim, Jun-Sik

Cho, Maenghyo ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151742, South Korea

[2] Penn State Univ, Dept Aerosp Engn, University Pk, PA 16802 USA

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2006年 / 66卷 / 11-12期

关键词：

plate theory; laminate theory; sandwich; shear correction factor;

D O I：

10.1016/j.compscitech.2005.11.018

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

An enhanced first-order shear deformation theory has been developed for the deformation and stress recovery of laminated and sandwich plates. Based on the definition of Reissner-Mindlin's plate theory, the relationships between three-dimensional and first-order shear deformation theories have been derived. It is assumed that the displacements, in-plane strains and stresses of Reissner-Mindlin's plate theory can approximate those of three-dimensional theory, in the least-square sense. Their relationships have been systematically established and verified through the strain energy transformation. These relationships provide the closed-form recovering relations for three-dimensional variables expressed in terms of the variables of Reissner-Mindlin's plate theory. An efficient higher-order plate theory is utilized to obtain the in-plane warping functions. Comparisons of deflection, stresses and shear correction factors of both laminated and sandwich plates using the present theory are made with the original first-order shear deformation theory and three-dimensional exact solutions. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1575 / 1587

页数：13

共 29 条

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