期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 17, 期 -, 页码 222-226出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1107/S0909049510001512
关键词
laminography; in situ loading; polymer composites; phase retrieval
资金
- EPSRC [EP/E000711/1]
- Engineering and Physical Sciences Research Council [EP/H01506X/1] Funding Source: researchfish
- EPSRC [EP/H01506X/1] Funding Source: UKRI
Synchrotron radiation computed laminography is applied to the three-dimensional micro-imaging of damage in large polymer composite plates with high spatial resolution. The influence of different experimental conditions is studied with respect to measurement time optimization, dose minimization and reduction of artefacts in the reconstructed images. Failures like delaminations, transverse ply cracks and splits are observed under in situ loads. The propagation of up to 2 mm-long cracks is non-destructively followed in situ and investigated in detail. By phase retrieval using a single detector distance, the failures can be easily visualized in three dimensions.
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