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. In: 7th International Conference on Mechanics of Composites (MECHCOMP7), Porto, Portugal, 1-3 Sept 2021,

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 Proceedings
• 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: Heidari, Professor Hadi and Zuo, Dr Siming and Fotouhi, Dr Sakineh and Tabatabaeian, Mr Ali 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 > School of Engineering > Autonomous Systems and Connectivity; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering; College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Systems Power and Energy

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• Organisation

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
310254		Novel architectures for visibility and tolerance of impact damage in composites (VIDCOM)	Mohammad Fotouhi	Engineering and Physical Sciences Research Council (EPSRC)	EP/V009451/1	ENG - Aerospace Sciences