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Multi-crack Detection of Beam Using the Change of Dynamic Characteristics
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 Title & Authors
Multi-crack Detection of Beam Using the Change of Dynamic Characteristics
Kim, Jung Ho; Lee, Jung Woo; Lee, Jung Youn;
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This study proposed the method of the multi-crack detection using the sensitivity coefficient matrix which is calculated from the change of eigenvalues and eigenvectors before and after the crack. Each crack is modeled by a rotational springs. The method is applied to the cantilever beam with miulti-crack. The eigenvalues and eigenvectors are determined for different crack locations and depths. The prediction of multi-crack detection are in good agreement with the results of structural reanalysis.
Stiffness Matrix;Sensitivity Coefficient Matrix;FEM;Dynamic Characteristics;Multi-crack Detection;
 Cited by
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