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Damage Detection in a Beam Structure Using Modal Strain Energy  

박수용 (영산대학교 건축학부)
최상현 (한국원자력 안전기술원)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.16, no.3, 2003 , pp. 333-342 More about this Journal
Abstract
The objective of this paper is to present an algorithm to locate and size damage in a beam structure. The method uses the changes in the modal strain energy distribution. A damage index, utilized to identify possible location and corresponding severity of local damage, is formulated and expressed in terms of modal displacements that can be obtained from mode shapes of the undamaged and the damaged structures. The possible damage locations in the structure arc determined by the application of damage indicator according to previously developed decision rules. The robustness and effectiveness of the method arc demonstrated using numerical examples of beam structures with simulated damage.
Keywords
damage detection; severity estimation; modal strain; damage index; beam structure;
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Times Cited By KSCI : 1  (Citation Analysis)
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