Vibration based diagnostics of fatigue damage

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Damage detection by means of non-destructive testing is absolutely essential for optimal maintenance scheduling to achieve high reliability and safety of engineering structures. This paper presents an experimental study to inspect the influence of fatigue crack on the dynamic behavior of a cantilevered beam. The variations in the statistical, spectral, and time-frequency analysis results due to the evolution of fatigue crack are detected from the time series data of vibration signals. The comparative evaluation of their sensitivity is investigated and it is found that statistical and spectral patterns in these signals correlate well with the crack growth. The results can be used for on-line monitoring and as prognosis technique to estimate the remaining fatigue life.

Original languageEnglish (US)
Title of host publicationIMAC-XXIII
Subtitle of host publicationConference and Exposition on Structural Dynamics - Structural Health Monitoring
StatePublished - Dec 1 2005
Event23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII - Orlando, FL, United States
Duration: Jan 31 2005Feb 3 2005

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other23rd Conference and Exposition on Structural Dynamics 2005, IMAC-XXIII
CountryUnited States
CityOrlando, FL
Period1/31/052/3/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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  • Cite this

    Abu-Mahfouz, I. (2005). Vibration based diagnostics of fatigue damage. In IMAC-XXIII: Conference and Exposition on Structural Dynamics - Structural Health Monitoring (Conference Proceedings of the Society for Experimental Mechanics Series).