Lakshmanan, N and Raghuprasad, BK and Gopalakrishnan, N. and Sathishkumar, K and Murthy, SGN (2010) Detection of contiguous and distributed damage through contours of equal frequency change. In: Journal of Sound and Vibration, 32926 (9). pp. 1310-1331.
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Abstract
The paper presents the results of a computational modeling for damage identification process for an axial rod representing an end-bearing pile foundation with known damage and a simply supported beam representing a bridge girder. The paper proposes a methodology for damage identification from measured natural frequencies of a contiguously damaged reinforced concrete axial rod and beam, idealized with distributed damage model. Identification of damage is from Equal_Eigen_value_change (Iso_Eigen_value_Change) contours, plotted between pairs of different frequencies. The performance of the method is checked for a wide variation of damage positions and extents. An experiment conducted on a free-free axially loaded reinforced concrete member and a flexural beam is shown as examples to prove the pros and cons of this method. (C) 2009 Elsevier Ltd. All rights reserved.
Item Type: | Journal Article |
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Publication: | Journal of Sound and Vibration |
Publisher: | Elsevier science |
Additional Information: | Copyright for this article belongs to Elsevier science. |
Department/Centre: | Division of Mechanical Sciences > Civil Engineering |
Date Deposited: | 17 Mar 2010 11:39 |
Last Modified: | 22 Oct 2018 15:04 |
URI: | http://eprints.iisc.ac.in/id/eprint/26203 |
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