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基于数字图像相关的微结构小疲劳裂纹扩展的全场应变测量

JoVE Journal
Engineering
Author Produced

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JoVE Journal Engineering

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

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基于数字图像相关的微结构小疲劳裂纹扩展的全场应变测量

DOI:

10.3791/59134-v

•

07:37 min

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January 16, 2019

•

Evgenii Malitckii, Heikki Remes, Pauli Lehto, Sven Bossuyt

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

Automatic Translation

采用裂纹扩展速率测量和应变场分析相结合的新方法, 研究了微结构小疲劳裂纹扩展行为, 揭示了亚晶粒水平的累积变形场。

Tags

Keywords: Digital Image Correlation Full-field Strain Measurement Microstructurally Small Fatigue Crack Propagation Lightweight Solutions Advanced Steel Materials Structural Analysis Wave Induced Loading Welded Joints Fatigue Small Fatigue Crack Initiation Annealing Grain Size Electron Back Scatter Diffraction

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