Vibration of beams with two overlapping delaminations in prebuckled states
Vibration of beams with two overlapping delaminations in prebuckled states
An analytical solution for the free vibrations of beams with two overlapping delaminations in prebuckled states is presented. The delaminated beam is analyzed as seven interconnected Euler–Bernoulli beams. The continuity and boundary conditions are satisfied between adjoining beams. Both the ‘free mode’ and the ‘constrained mode’ assumption in delamination buckling and vibration are used. A parametric study is performed to investigate the influence of the axial compressive load on the natural frequency and the mode shape of the delaminated beam. A monotonic relation between the natural frequency and the compressive load is observed. Comparisons with the analytical results reported for delamination buckling and vibration verify the validity of the present solution.
composite beams, delamination, vibration, buckling, analytical modelling
109-118
Della, Christian N.
218552a1-70df-411c-9197-a24a243b1002
Shu, Dongwei
c54c2744-7263-43e5-8eda-7d329d44c4d8
March 2007
Della, Christian N.
218552a1-70df-411c-9197-a24a243b1002
Shu, Dongwei
c54c2744-7263-43e5-8eda-7d329d44c4d8
Della, Christian N. and Shu, Dongwei
(2007)
Vibration of beams with two overlapping delaminations in prebuckled states.
Composites Part B: Engineering, 38 (2), .
(doi:10.1016/j.compositesb.2006.08.001).
Abstract
An analytical solution for the free vibrations of beams with two overlapping delaminations in prebuckled states is presented. The delaminated beam is analyzed as seven interconnected Euler–Bernoulli beams. The continuity and boundary conditions are satisfied between adjoining beams. Both the ‘free mode’ and the ‘constrained mode’ assumption in delamination buckling and vibration are used. A parametric study is performed to investigate the influence of the axial compressive load on the natural frequency and the mode shape of the delaminated beam. A monotonic relation between the natural frequency and the compressive load is observed. Comparisons with the analytical results reported for delamination buckling and vibration verify the validity of the present solution.
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Submitted date: 21 December 2005
Published date: March 2007
Keywords:
composite beams, delamination, vibration, buckling, analytical modelling
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 50334
URI: http://eprints.soton.ac.uk/id/eprint/50334
ISSN: 1359-8368
PURE UUID: 4eda4a79-74e8-4366-b94c-2ae532f2331e
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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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