A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damage Identification of a Composite Beam Using Finite Element Model Updating
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.
Damage Identification of a Composite Beam Using Finite Element Model Updating
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.
Damage Identification of a Composite Beam Using Finite Element Model Updating
Moaveni, B. (author) / He, X. (author) / Conte, J. P. (author) / De Callafon, Raymond A. (author)
Computer‐Aided Civil and Infrastructure Engineering ; 23 ; 339-359
2008-07-01
21 pages
Article (Journal)
Electronic Resource
English
Damage Identification of a Composite Beam Using Finite Element Model Updating
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