Some Observations on the Modeling of Laminated Composite Beams with General Lay-Ups.

Author

A. Bhimaraddi
K. Chandrashekhara, Missouri University of Science and TechnologyFollow

Abstract

In this paper the modeling of laminated beams has been considered by a systematic reduction of the constitutive relations of the three-dimensional anisotropic body. The basic equations of the beam theory here are those of the parabolic shear deformation theory. Numerical results for natural frequencies and the Euler buckling load have been presented using the present modeling of the constitutive relations and those of the conventional type modeling. It has been observed from the numerical results that the two approaches differ little in the case of cross-ply laminates but there exists a considerable difference (by a multiple factor of 3 in some cases) in the case of angle-ply laminates. The correctness of the present modeling has been further verified by modeling the same beam as a plate. It has been concluded that one should adopt the constitutive relations as given in this paper while modeling the laminated, especially angle-ply, composite beams.

Recommended Citation

A. Bhimaraddi and K. Chandrashekhara, "Some Observations on the Modeling of Laminated Composite Beams with General Lay-Ups.," Composite Structures, Elsevier, Jan 1991.

The definitive version is available at https://doi.org/10.1016/0263-8223(91)90082-A

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0263-8223

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 Elsevier, All rights reserved.

Publication Date

01 Jan 1991