A Digital Image Correlation (DIC) prototype system for crack propagation monitoring in aircraft assemblies

Background: In the Clean Sky 2 project DIMES, the cyclic loading of a section of an A320 wing with pre-existing damage was carried out. Methods: We present a Digital Image Correlation (DIC) prototype system to monitor crack propagation in the aircraft wing. This system includes a mount for easy inst...

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Bibliographic Details
Published in:Open research Europe 2022-09, Vol.2, p.82
Main Authors: Hack, Erwin, Luan, LiKang, Crosbie, Liam, Michel, Silvain
Format: Article
Language:English
Subjects:
aerospace
aircraft
DIC
eng
fatigue
SHM
Structural Health Monitoring
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Summary:Background: In the Clean Sky 2 project DIMES, the cyclic loading of a section of an A320 wing with pre-existing damage was carried out. Methods: We present a Digital Image Correlation (DIC) prototype system to monitor crack propagation in the aircraft wing. This system includes a mount for easy installation and adjustment in a confined space. Results: Strain localization and evaluation due to crack propagation was successfully observed in the Region-of-Interest (ROI) during cyclic fatigue loading. The results from the DIC prototype system were supported by conventional contact Resistance Strain Gauge (RSG) sensors acting as a far-field monitor. Conclusions: Future improvements, the combination of two DIC modules for a stereo DIC system and the potential of the DIC system for ground-based tests and Structural Health Monitoring (SHM) applications are also discussed.
ISSN:2732-5121
2732-5121
DOI:10.12688/openreseurope.14599.1