We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Damage Identification of a Composite Beam Using Finite Element Model Updating.
- Authors
Moaveni, B.; He, X.; Conte, J. P.; De Callafon, Raymond A.
- Abstract
The damage identification study presented in this article leveraged a full-scale sub-component experiment conducted in the Charles Lee Powell Structural Research Laboratories at the University of California, San Diego. As a payload project attached to a quasi-static test of a full-scale composite beam, a high-quality set of low-amplitude vibration response data was acquired from the beam at various damage levels. The Eigensystem Realization Algorithm was applied to identify the modal parameters (natural frequencies, damping ratios, displacement and macro-strain mode shapes) of the composite beam based on its impulse responses recorded in its undamaged and various damaged states using accelerometers and long-gage fiber Bragg grating strain sensors. These identified modal parameters are then used to identify the damage in the beam through a finite element model updating procedure. The identified damage is consistent with the observed damage in the composite beam.
- Subjects
SAN Diego (Calif.); CALIFORNIA; GIRDER vibration; COMPOSITE construction; UNIVERSITY of California, San Diego; DAMPING (Mechanics); FINITE element method
- Publication
Computer-Aided Civil & Infrastructure Engineering, 2008, Vol 23, Issue 5, p339
- ISSN
1093-9687
- Publication type
Article
- DOI
10.1111/j.1467-8667.2008.00542.x