Damage detection in a timber bridge model

Tran, D, Venkatesan, S and Fragomeni, S 2012, 'Damage detection in a timber bridge model', in B. Samali, M. M. Attard and C. Song (ed.) Proceedings of 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012, Sydney, Australia, 11-14 December 2012, pp. 939-943.


Document type: Conference Paper
Collection: Conference Papers

Title Damage detection in a timber bridge model
Author(s) Tran, D
Venkatesan, S
Fragomeni, S
Year 2012
Conference name 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012
Conference location Sydney, Australia
Conference dates 11-14 December 2012
Proceedings title Proceedings of 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2012
Editor(s) B. Samali, M. M. Attard and C. Song
Publisher CRC Press
Place of publication Netherlands
Start page 939
End page 943
Total pages 5
Abstract This paper investigates detecting structural damage by vibration testing in a timber bridge model of 3m×1m×0.2m supported on four stiff columns. Impact hammer tests were carried out to obtain frequency response functions (FRFs) in undamaged and damaged condition inwhich one plank of 90mmwidewas removed. The FRFs were processed by the Damage LocationVector (DLV) algorithm to determine the location and extent of damage. The DLV algorithm requires the dynamic stiffness matrix of the structure which is deducible from a spatial model of the structure. A simple finite element model (FEM) using Bernoulli beam model was used in this paper to obtain the dynamic stiffness matrix and impact vibration testing was used to obtain the FRFs curves. The position and extent of damage was correctly identified by DLV. A more complex FEM model employing plate elements will be investigated.
Subjects Mathematical Physics not elsewhere classified
Copyright notice © 2013 Taylor & Francis Group
ISBN 9780415633185
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