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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/6901

Título: An improved numerical-experimental method for damage location in structures
Autor: Lopes, H.
Santos, J.V. Araújo dos
Mota Soares, C.M.
Guedes, R.M.
Vaz, M.A.P.
Palavras-chave: Damage location
Rotations field
Mode shapes curvatures
Interferometric technique
Issue Date: 2008
Editora: B.H.V. Topping and M. Papadrakakis
Citação: Lopes, H.; Araújo dos Santos, J.V.; Mota Soares, C.M.; Guedes, R.M.; Vaz, M.A. (2008) - An improved numerical-experimental method for damage location in structures. In The Ninth International Conference on Computational Structures Technology. Athens-Greece. ISBN 978-1-905088-22-5
Resumo: An improvement of a curvature based numerical-experimental method for damage location in structures [1] is presented. The Mach-Zehnder shearography interferometer is used to measure the rotations field or the out-of-plane first order derivatives of mode shapes displacement field [2, 3]. The curvatures or second order derivatives are computed by a numerical method [4]. An aluminum beam with two small transversal cuts was tested for damaged location. The experimental results show a high correlation between the curvatures discontinuities field and the damages position. This study also demonstrates the superior performance of the curvature method using measured rotations field instead of measured displacements field.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/6901
ISBN: 978-1-905088-22-5
Appears in Collections:DMA - Resumos em Proceedings Não Indexados ao ISI

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