Application of Electrical Resistance Change Method for Impact Damage Monitoring in Quasi-isotropic Hybrid Composites

Fotouhi, S., Tabatabaeian, A., Zuo, S., Liu, S., Heidari, H. and Fotouhi, M. (2021) Application of Electrical Resistance Change Method for Impact Damage Monitoring in Quasi-isotropic Hybrid Composites. 7th International Conference on Mechanics of Composites (MECHCOMP7), Porto, Portugal, 1-3 Sept 2021.

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Abstract

This study investigates the possibility of barely visible impact damage detection in carbon fibre-reinforced polymer composites using a novel coating hybrid composite made of glass/carbon prepregs. A set of quasi-isotropic [45/0/90/-45]4S laminates made from unidirectional T800 carbon/MTM49-3 epoxy prepregs, as substrate, with a thin-ply hybrid composite sensing layer made of single plies of unidirectional ultra-high modulus carbon (YS-90)/epoxy and S-glass/epoxy material were damaged by barely visible impact at various energies. The hybrid composite sensors change their appearance and electrical resistance at different energy levels of impact due to induced subcritical damage mechanisms such as carbon fracture and incremental crack growth at the carbon/glass interface in the sensing hybrid composite. These changes are correlated with the barely visible impact damage induced in the quasi-isotropic substrate carbon composite. It has been shown that monitoring electrical resistance change and appearance change at the same time is a suitable tool for detection of impact energy level and therefore extent of the induced damage.

Item Type:Conference or Workshop Item
Additional Information:This work was funded under the UK Engineering and Physical Sciences Research Council (EPSRC) Grant EP/V009451/1 on Next generation of high-performance impact resistant composites with visibility of damage.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Tabatabaeian, Ali and Heidari, Dr Hadi and Zuo, Siming and Fotouhi, Sakineh and Fotouhi, Dr Mohammad and Liu, Sixin
Authors: Fotouhi, S., Tabatabaeian, A., Zuo, S., Liu, S., Heidari, H., and Fotouhi, M.
College/School:College of Science and Engineering
College of Science and Engineering > School of Engineering > Aerospace Sciences
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
310254Novel architectures for visibility and tolerance of impact damage in composites (VIDCOM)Mohammad FotouhiEngineering and Physical Sciences Research Council (EPSRC)EP/V009451/1ENG - Aerospace Sciences