Crack Identification in a Cantilever Beam Using Coupled Response Measurements PUBLIC ACCESS

[+] Author Affiliations
A. S. Sekhar, P. Balaji Prasad

Indian Institute of Technology, Kharagpur, India

Paper No. 97-AA-025, pp. V001T11A002; 6 pages
  • ASME 1997 Turbo Asia Conference
  • ASME 1997 Turbo Asia Conference
  • Singapore, September 30–October 2, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7867-5
  • Copyright © 1997 by ASME


Identification of crack location and magnitude through measurement in changes in system characteristics, such as modal measurements has been studied by various researchers. In the present work based on the new method proposed by Gounaris et al (1996) for crack detection through coupled response measurements, experiments were carried out on a cracked cantilever beam for eigenfrequencies, bending and axial response measurements. It has been observed that the rate of change of direct response (bending) is much less at small cracks while that of the coupled response (axial) changes, substantially allowing diagnoses of smaller cracks.

Copyright © 1997 by ASME
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