Transverse cracking in glass fibre-reinforced composites monitored with synchrotron X-ray multi-projection imaging
The first damage mechanism in composites in tension is transverse cracking, which is here studied in 3D at a kHz rate, using time-resolved X-ray multi-projection imaging. Radiographs taken at three angles with synchrotron radiation enabled the detection of crack propagation and other damage mechan...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | deu |
| Published: |
NDT.net
2025-02-01
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| Series: | e-Journal of Nondestructive Testing |
| Online Access: | https://www.ndt.net/search/docs.php3?id=30757 |
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| Summary: | The first damage mechanism in composites in tension is transverse cracking, which is here studied in 3D at a kHz rate, using time-resolved X-ray multi-projection imaging. Radiographs taken at three angles with synchrotron radiation enabled the detection of crack propagation and other damage mechanisms related to the final failure of composites. Deep learning segmentation has been proven effective in analysing the crack shape before a crack opening occurs. With these tools, a comparison between different lay-ups revealed that external transverse plies are much weaker than internal ones. An extensive data set was gathered to make a 3D reconstruction of the crack evolution over time using XMPI and machine learning-based reconstruction algorithms.
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| ISSN: | 1435-4934 |