Paper Title:
Characteristics of Crack Detection on Plates Using Strain Mode Shapes; Sensor Grids and Geometry
  Abstract

The existence of a crack in a structure produces changes in modal parameters of it such as natural frequencies, damping, displacement and strain mode shapes. This paper is focused on characterization of crack detection methods using strain mode shapes. To characterize crack detection methods, we changed sensing grids from corner grid to cross grid and geometry of the specimens from rectangular to triangular plate. Rest of conditions was fixed. For crack detection criteria, COMAC, ECOMAC, ADSM and new method have been used and the results are compared with each other. The COMAC, ECOMAC and ADSM showed limited capacity of crack detection on plates but the new method gave good results in 90% of all cases.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1620-1623
DOI
10.4028/www.scientific.net/KEM.321-323.1620
Citation
B. S. Kim, S. H. Yoo, S. J. Lee, S. K. Baik, "Characteristics of Crack Detection on Plates Using Strain Mode Shapes; Sensor Grids and Geometry", Key Engineering Materials, Vols. 321-323, pp. 1620-1623, 2006
Online since
October 2006
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Price
$32.00
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