Damage Diagnosis of Frame Structures Using Modified Modal Strain Energy Change Method
Publication: Journal of Engineering Mechanics
Volume 134, Issue 11
Abstract
This work presents a modified modal strain energy change (M-MSEC) method and its corresponding iteration process to detect damage to frame structures. Analytical results of a three-dimensional frame structure demonstrate that the quantity of damage can be identified correctly by using different modes in the M-MSEC method. A full-scale experimental study is also performed to evaluate the robustness of the M-MSEC method on damage detection as well as damage quantification. Satisfactory results are shown in relation to the modeling error, noise effect, and limited measurements.
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Acknowledgments
The writers gratefully acknowledge the support of the research by the National Science Council of Taiwan under Grant No. NSCTNSC 95-2625-Z002-032 and the support of the Program for Excellence Research Team of National Taiwan University, under Grant No. UNSPECIFIED95R0066–BE03-05.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 134 • Issue 11 • November 2008
Pages: 1000 - 1012
Copyright
© 2008 ASCE.
History
Received: Mar 5, 2007
Accepted: Apr 25, 2008
Published online: Nov 1, 2008
Published in print: Nov 2008
Notes
Note. Associate Editor: Lambros S. Katafygiotis
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