Christian, WJR 
ORCID: 0000-0003-3638-7297, Lambert, P, Tabrizi, IE, Middleton, CA ORCID: 0000-0001-9488-9717, Przybyla, C and Patterson, EA ORCID: 0000-0003-4397-2160
(2024)
Towards automated characterisation of fatigue damage in composites using thermoelastic stress analysis.
Composites Part A: Applied Science and Manufacturing, 183.
p. 108205.
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Abstract
Composite materials demonstrate complicated fatigue behaviour due to their microstructure and the varied types of defects that can occur during loading. This necessitates experimentation to determine their performance under loading. In this study an algorithm is introduced for identifying and categorising different defects forming during fatigue tests. Thermoelastic stress analysis was used to obtain high spatial and temporal resolution stress information from the surface of notched composite specimens. Specimens with three different geometries were loaded in tension–tension fatigue to failure. An algorithm was used to identify when and where matrix cracking and delaminations formed within the specimens as well as quantify how this changed over time. By improving how damage events are identified and characterised, the algorithm reduces the amount of time needed to process experimental fatigue data and helps to provide greater understanding of fatigue processes in new materials from early small-scale cracking all the way to final failure.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Engineering |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 23 Apr 2024 09:07 |
| Last Modified: | 11 May 2024 02:34 |
| DOI: | 10.1016/j.compositesa.2024.108205 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3180526 |
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