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An improved structural damage detection method based on modal strain energy
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-0560-9355
Civil Engineering and Architecture College, Central South University of Forestry and Technology.
2006 (English)In: Proceedings of the Eighth International Conference on Computational Structures Technology: Las Palmas de Gran Canaria - Spain 12 - 15 September 2006 / [ed] B.H.V. Topping, Klippen: Civil-Comp Press , 2006Conference paper, Published paper (Refereed)
Abstract [en]

Structural damage detection methods based on modal strain energy usually require complete modes, however, only a small number of sensors are located on the structure in practice. In order to overcome this contradict, an improved structural damage detection algorithm based on modal strain energy is developed in this paper. By divided the contribution of higher modes into two parts, i.e., the static and dynamic contributions, the static term can be expressed by lower modes and dynamic term was approximately approached. It could be applied to detect structural damage location and quantity by using only first one or two modes. The three different simulated structures with the same damaged case are studied in present. The results illustrate that the present method is simple and effective with satisfying precision both in locating the place of damage and estimating the magnitude of damage

Place, publisher, year, edition, pages
Klippen: Civil-Comp Press , 2006.
Series
Civil-Comp Proceedings, ISSN 1759-3433 ; 82
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-31945Local ID: 645451ee-2ca8-4c10-a4c4-01848152b509ISBN: 9781905088089 (print)OAI: oai:DiVA.org:ltu-31945DiVA, id: diva2:1005179
Conference
International Conference on Computational Structures Technology : 12/09/2006 - 15/09/2006
Note
Godkänd; 2006; 20140225 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Elfgren, Lennart

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Output format
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