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Vibrations of beams with two overlapping delaminations. (In: Twelfth International Conference on Composite Structures)

Della, Christian N., Shu, Dongwei and MSRao, Parlapalli (2004) Vibrations of beams with two overlapping delaminations. (In: Twelfth International Conference on Composite Structures) Composite Structures, 66, (1-4), pp. 101-108. (doi:10.1016/j.compstruct.2004.04.027).

Record type: Article

Abstract

Delamination in composite laminates may arise from either imperfect fabrication processes or impact during service. The locations of the delaminations are arbitrary. In this research, an analytical solution to the free vibrations of a beam with two overlapping delaminations is presented. The delaminated beam is analyzed as seven interconnected Euler–Bernoulli beams. The influence of the sizes and the locations of the delaminations on the fundamental frequency and the mode shape of the beam are investigated. Complex vibration behaviors emerge for different sizes and locations of the delaminations. The results based on the present model agree well with the analytical data reported in the literature.

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More information

Published date: October 2004
Keywords: free vibrations, delaminations, natural frequency, mode shape, beam, laminates
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 50534
URI: http://eprints.soton.ac.uk/id/eprint/50534
ISSN: 0263-8223
PURE UUID: 3e97c6ee-ffdc-4f0e-a78e-f4278dbbf4d1

Catalogue record

Date deposited: 26 Feb 2008
Last modified: 17 Jul 2017 14:52

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Contributors

Author: Christian N. Della
Author: Dongwei Shu
Author: Parlapalli MSRao

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