Fotouhi, S. , Jalalvand, M., Wisnom, M. R. and Fotouhi, M. (2023) Smart hybrid composite sensor technology to enhance the detection of low energy impact damage in composite structures. Composites Part A: Applied Science and Manufacturing, 172, 107595. (doi: 10.1016/j.compositesa.2023.107595)
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Abstract
This paper introduces novel structural health monitoring (SHM) sensors to improve the detection of low energy impact damage in laminated composites. The sensor is a purposely designed thin-ply hybrid composite, composed of a layer of unidirectional S-glass/epoxy and another layer of unidirectional ultra-high modulus (UHM) carbon/epoxy. The sensor was incorporated onto both the impacted face and back of a substrate plate made from unidirectional T800 carbon/MTM49-3 epoxy prepregs with the stacking sequence of [45/0/90/-45]4S. A series of drop tower tests were conducted on the composite plates with and without the attached hybrid sensing layer, with two different in-plane dimensions and varying energy levels ranging from 3 J to 124 J. The results indicate that the sensors functioned satisfactorily and provided direct correlations between visible and internal hidden damage detected by C-scan. The sensor can be optimized by selecting appropriate material properties and adjusting it to the in-plane dimensions of the substrate.
| Item Type: | Articles |
|---|---|
| Additional Information: | The research presented in this paper was financially supported by the UK Engineering and Physical Sciences Research Council (EPSRC) Grants EP/V009451/1, which focused on the development of high-performance impact-resistant composites with visible damage, and EP/I02946X/1, which aimed to advance high-performance ductile composite technology in collaboration with Imperial College. |
| Keywords: | Impact damage, structural health monitoring, carbon fibre composite, hybrid composites. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Fotouhi, Dr Sakineh and Fotouhi, Dr Mohammad |
| Creator Roles: | Fotouhi, S.Methodology, Writing – original draft Fotouhi, M.Conceptualization, Methodology, Funding acquisition, Supervision, Writing – original draft, Writing – review and editing |
| Authors: | Fotouhi, S., Jalalvand, M., Wisnom, M. R., and Fotouhi, M. |
| College/School: | College of Science and Engineering > School of Engineering College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Composites Part A: Applied Science and Manufacturing |
| Publisher: | Elsevier |
| ISSN: | 1359-835X |
| ISSN (Online): | 1878-5840 |
| Published Online: | 02 May 2023 |
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