A {3,2}-order bending theory for laminated composite and sandwich beams

被引：55

作者：

Cook, GM

Tessler, A ^{[1
]}

机构：

[1] NASA, Struct Div, Langley Res Ctr, Hampton, VA 23681 USA

[2] George Washington Univ, Sch Engn & Appl Sci, Hampton, VA 23681 USA

来源：

COMPOSITES PART B-ENGINEERING | 1998年 / 29卷 / 05期

关键词：

D O I：

10.1016/S1359-8368(98)00011-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A higher-order bending theory is derived for laminated composite and sandwich beams thus extending the recent {1,2}-order theory to include third-order axial effects without introducing additional kinematic variables. The present theory is of order {3,2} and includes both transverse shear and transverse normal deformations. A closed-form solution to the cylindrical bending problem is derived and compared with the corresponding exact elasticity solution. The numerical comparisons are focused on the most challenging material systems and beam aspect ratios which include moderate-to-thick unsymmetric composite and sandwich laminates. Advantages and Limitations of the theory are discussed. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：565 / 576

页数：12