ISSN: 0884-6804
CODEN: JCTRER
Page Count: 5

Thin-Walled Laminated Composite Cylindrical Tubes: Part II—Bending Analysis
dos Reis, HLM
Assistant professor and graduate student of general engineering, University of Illinois, IL

Goidman, RB
Assistant professor and graduate student of general engineering, University of Illinois, IL

Abstract

A beam-type stiffness matrix for thin-walled filamentary wound laminated composite tubes of any layup is derived. This beam-type stiffness matrix has degrees of freedom that are consistent with stiffness matrices used in classical matrix analysis of structures, and it is numerically constructed from results of two-point boundary value problems using Donnell's shell theory. Using this stiffness matrix, numerical results are obtained for the deflections of a simply supported composite tube loaded at its center. It is noted that for certain layups the beam theory approach using a longitudinal equivalent Young's modulus tends to mask fundamental characteristics that govern the static response of laminated composite tubes.

Keywords:
composite tubes, stiffness matrix, bending, laminated tubes, Donnell shell theory, boundary-value problems

Paper ID: CTR10429J
DOI: 10.1520/CTR10429J
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