Title: Damage Detection and Localization with Experimental Eigen-sensitivities
Authors: Meruane, Viviana ×
Heylen, Ward #
Issue Date: Sep-2009
Publisher: DEStech Publications, Inc.
Host Document: Proceedings of the 7th International Workshop on Structural Health Monitoring vol:2 pages:1343-1350
Conference: IWSHM edition:7th location:Stanford University date:9-11 September 2009
Abstract: A non-model based method is proposed to detect and locate linear damage on spring and beam like structures. The method uses mode and frequency sensitivities to detect and locate damage; these sensitivities are estimated with experimental modes and frequencies from the undamaged structure. Thus, no numerical model of the structure is required. Damage is assumed to be directly related to a decrease in stiffness. The approach is verified with two experimental cases. First, an eight degree of freedom spring system. Second, a multi-cracked reinforced concrete beam. In both cases, results are compared with those obtained with the damage index (strain energy) method. The proposed method shows a better behavior with multiple damage and noisy conditions. The detected damage corresponds well to the real damage patterns.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
× corresponding author
# (joint) last author

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