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Title: A hybrid technique for damage detection on laminated plates
Authors: Lopes, H.
Santos, J.V. Araújo dos
Guedes, R.M.
Vaz, M.A.P.
Keywords: Damage detection
laminated plates
Issue Date: 2006
Citation: Lopes, H.; Santos, J. V. A.; Guedes , R.; Vaz, M. (2006) - A hybrid technique for damage detection on laminated plates. In Photomechanics . França.
Abstract: This work presents an experimental/numerical technique for delamination damage detection on thin laminated composite plates. The delamination is identified using a technique based on the curvature differences of the plate modes shapes measured before and after impact damage. The natural frequencies are extracted from Frequency Response Functions. A double pulse TV holography is used for no-contact and accurate measurement of the amplitude mode shapes. The curvature is obtained by applying an improved differentiation /smoothing technique to the experimental data. Finally, the curvatures of each mode are subtracted and the damage is located.
Peer review: yes
Appears in Collections:DMA - Resumos em Proceedings Não Indexados ao ISI/Scopus

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