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Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation
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Engineering
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JoVE Journal Engineering
Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

Crack Monitoring in Resonance Fatigue Testing of Welded Specimens Using Digital Image Correlation

DOI:
10.3791/60390-v

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00:05 min

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September 29, 2019

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,
1Institute for Ship Structural Design and Analysis,Hamburg University of Technology (TUHH)

Chapters

  • 00:00Title
  • 00:39Specimen Preparation
  • 01:25Test Setup
  • 02:22Fatigue Test
  • 03:16Post-processing
  • 03:59Results
  • 04:54Conclusion

Summary

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Digital image correlation is used in fatigue tests on a resonance testing machine to detect macroscopic cracks and monitor crack propagation in welded specimens. Cracks on the specimen surface become visible as increased strains.

Tags

Keywords: Crack MonitoringResonance Fatigue TestingWelded SpecimensDigital Image CorrelationFatigue PropertiesWelded DetailsSmall Scale SpecimensCyclic LoadCrack InitiationCrack PropagationSpecimen FailureSpeckle PatternStructural SteelWeld HoleResonance Testing MachineCamera SetupExposure TimeTrigger Signal

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