Haibao Liu
Modelling the effects of patch-plug configuration on the impact performance of patch-repaired composite laminates
Liu, Haibao; Liu, Jun; Hall, Zoe E.C.; Brooks, Richard A.; Crocker, James W.M.; Joesbury, Adam M.; Harper, Lee T.; Blackman, Bamber R.K.; Kinloch, Anthony J.; Dear, John P.
Authors
Jun Liu
Zoe E.C. Hall
Richard A. Brooks
James W.M. Crocker
Adam M. Joesbury
LEE HARPER LEE.HARPER@NOTTINGHAM.AC.UK
Associate Professor - Composites Manufacturing
Bamber R.K. Blackman
Anthony J. Kinloch
John P. Dear
Abstract
The patch-plug configuration has been widely used to repair composite structures and restore the structural integrity of damaged composites. In the present research, single-sided CFRP patch-repaired panels, with different patch-plug configurations, are prepared. This is where a circular-shaped damaged area has been removed and a CFRP patch has been adhesively-bonded onto the panel. In some cases, a CFRP plug is inserted into the hole, caused by removal of the damaged area, before the patch is applied. Such patch-repaired panels, and the pristine CFRP panel, are subjected to a low-velocity impact at an energy of 7.5 J. These impacted pristine and repaired panels are then examined using ultrasonic C-scan and optical microscopy to inspect the impact-associated permanent indentation, interlaminar and intralaminar damage. A finite element analysis (FEA) model, which significantly extends a previously validated elastic-plastic (E-P) numerical damage model, has been developed to predict the impact behaviour of the pristine CFRP panel and the various designs of patch-repaired CFRP panels. The comparison between the experimental and numerical results for all the studied cases shows the maximum deviations for the loading response and the damage area are 12% and 15%, respectively. The good agreement between the experimentally-measured impact properties and those predicted using the numerical model demonstrates that the model is a useful design tool.
Citation
Liu, H., Liu, J., Hall, Z. E., Brooks, R. A., Crocker, J. W., Joesbury, A. M., …Dear, J. P. (2023). Modelling the effects of patch-plug configuration on the impact performance of patch-repaired composite laminates. Composites Science and Technology, 233, Article 109917. https://doi.org/10.1016/j.compscitech.2023.109917
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 7, 2023 |
Online Publication Date | Jan 9, 2023 |
Publication Date | Mar 1, 2023 |
Deposit Date | Jan 10, 2023 |
Publicly Available Date | Jan 11, 2023 |
Journal | Composites Science and Technology |
Print ISSN | 0266-3538 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 233 |
Article Number | 109917 |
DOI | https://doi.org/10.1016/j.compscitech.2023.109917 |
Keywords | General Engineering; Ceramics and Composites |
Public URL | https://nottingham-repository.worktribe.com/output/15930011 |
Publisher URL | https://www.sciencedirect.com/science/article/pii/S0266353823000106?via%3Dihub |
Files
1-s2.0-S0266353823000106-main
(4.2 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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