Multimetric Sensing for Structural Damage Detection
Publication: Journal of Engineering Mechanics
Volume 137, Issue 1
Abstract
Vibration-based damage detection methods have been widely studied for structural health monitoring of civil infrastructure. Acceleration measurements are frequently employed to extract the dynamic characteristics of the structure and locate damage because they can be obtained conveniently and possess relatively little noise. However, considering the fact that damage is a local phenomenon, the sole use of acceleration measurements that are intrinsically global structural responses limits damage detection capabilities. This paper investigates the possibility of using both global and local measurements to improve the accuracy and robustness of damage detection methods. A multimetric approach based on the damage locating vector method is proposed. Numerical simulations are conducted to verify the efficacy of the proposed approach.
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Acknowledgments
The writers gratefully acknowledge the support of this research by the National Science Foundation under Grant No. NSFCMS 0600433 (Dr. S. C. Liu, program manager).
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 137 • Issue 1 • January 2011
Pages: 22 - 30
Copyright
© 2011 ASCE.
History
Received: Mar 30, 2009
Accepted: Jun 17, 2010
Published online: Jun 22, 2010
Published in print: Jan 2011
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