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Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method
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Engineering
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JoVE Journal Engineering
Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method

Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method

DOI:
10.3791/59134-v

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07:37 min

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January 16, 2019

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, , ,
1Department of Mechanical Engineering,Aalto University School of Engineering

Chapters

  • 00:00Title
  • 01:54Specimen Preparation and Annealing
  • 02:49Fatigue Pre-cracking
  • 03:21Microstructural Characterization
  • 03:53Decoration with a Pattern
  • 04:54Results Analysis
  • 05:36Representative Results
  • 06:49Conclusion

Summary

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Automatic Translation

Microstructurally small fatigue crack growth behavior is investigated using a novel methodological approach combining crack growth rate measurement and strain-field analysis to reveal the cumulative deformation field at sub-grain level.

Tags

Keywords: Digital Image CorrelationFull-field Strain MeasurementMicrostructurally Small Fatigue Crack PropagationLightweight SolutionsAdvanced Steel MaterialsStructural AnalysisWave Induced LoadingWelded JointsFatigueSmall Fatigue Crack InitiationAnnealingGrain SizeElectron Back Scatter Diffraction

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