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.
jsv_final_pdf.pdf - Published Version
Restricted to Registered users only
Download (2948Kb) | Request a copy
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|
|Additional Information:||Copyright for this article belongs to Elsevier science.|
|Date Deposited:||17 Mar 2010 11:39|
|Last Modified:||19 Sep 2010 05:57|
Actions (login required)