Vibration of beams with double delaminations
Vibration of beams with double delaminations
The vibration of beams with double delaminations has been solved analytically without resorting to numerical approximation. The beam is analyzed as five interconnected beams using the delaminations as their boundaries. The continuity and boundary conditions are satisfied between adjoining beams. Classical beam theory is applied to each of the beams. A new slenderness ratio specific for vibration is introduced, which is shown to dominate the vibration behavior of the beam. Global, mixed and local vibration modes occur depending upon the slenderness ratios of the delaminated beams. Different vibration behaviors emerge for different sizes, depths, spanwise locations and relative slenderness ratios of the delaminations.
delaminations, vibration, natural frequency, sandwich beam
919-935
Della, Christian N.
218552a1-70df-411c-9197-a24a243b1002
Shu, Dongwei
c54c2744-7263-43e5-8eda-7d329d44c4d8
22 April 2005
Della, Christian N.
218552a1-70df-411c-9197-a24a243b1002
Shu, Dongwei
c54c2744-7263-43e5-8eda-7d329d44c4d8
Della, Christian N. and Shu, Dongwei
(2005)
Vibration of beams with double delaminations.
Journal of Sound and Vibration, 282 (3-5), .
(doi:10.1016/j.jsv.2004.03.052).
Abstract
The vibration of beams with double delaminations has been solved analytically without resorting to numerical approximation. The beam is analyzed as five interconnected beams using the delaminations as their boundaries. The continuity and boundary conditions are satisfied between adjoining beams. Classical beam theory is applied to each of the beams. A new slenderness ratio specific for vibration is introduced, which is shown to dominate the vibration behavior of the beam. Global, mixed and local vibration modes occur depending upon the slenderness ratios of the delaminated beams. Different vibration behaviors emerge for different sizes, depths, spanwise locations and relative slenderness ratios of the delaminations.
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Submitted date: 22 October 2003
Published date: 22 April 2005
Keywords:
delaminations, vibration, natural frequency, sandwich beam
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 50339
URI: http://eprints.soton.ac.uk/id/eprint/50339
ISSN: 0022-460X
PURE UUID: 30ecaf45-2fb3-470b-acb4-17bcc9e21a62
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Date deposited: 18 Feb 2008
Last modified: 15 Mar 2024 10:05
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Contributors
Author:
Christian N. Della
Author:
Dongwei Shu
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