Self-healing of structural carbon fibres in polymer composites
Carbon fibre–reinforced composites (CFRCs) are increasingly used in aeroplanes, satellites and offshore wind turbines. Access those systems for repair when the material is damaged may be difficult. Researchers have incorporated vascular systems containing healing agents into CFRCs, enabling them aut...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Cogent Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/23311916.2020.1799909 |
| _version_ | 1797727085926547456 |
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| author | Yongjing Wang Jake Edgell Nicholas Graham Nathaniel Jackson Hengkun Liang Duc Truong Pham |
| author_facet | Yongjing Wang Jake Edgell Nicholas Graham Nathaniel Jackson Hengkun Liang Duc Truong Pham |
| author_sort | Yongjing Wang |
| collection | DOAJ |
| description | Carbon fibre–reinforced composites (CFRCs) are increasingly used in aeroplanes, satellites and offshore wind turbines. Access those systems for repair when the material is damaged may be difficult. Researchers have incorporated vascular systems containing healing agents into CFRCs, enabling them automatically to recover from delamination and debonding. However, self-recovery of the structural fibres that give CFRCs their exceptional mechanical properties is still impossible. This paper describes a method to make CFRCs self-heal following structural fibres’ damage. This involves automatically delivering epoxy-based healing agents containing short carbon fibres (SCFs) to cracks through an embedded vascular system. Cracks are created by disk-cutting through the carbon fibre layer of CFRC specimens. The SCFs in the released healing agents can be aligned in a local electric field produced by applying a potential to the broken structural carbon fibres. The alignment reconnects the structural carbon fibres. Process parameters were investigated to observe their effects on the healing performance and determine the optimum healing agent composition and conditions. In comparison to using conventional healing agents without SCFs and electric alignment which restored 25.2% of a CFRC’s original strength, employing the proposed approach increased the recovery to 47.3%. |
| first_indexed | 2024-03-12T10:54:48Z |
| format | Article |
| id | doaj.art-b51817d24abb4bfa8fda3e07e752f923 |
| institution | Directory Open Access Journal |
| issn | 2331-1916 |
| language | English |
| last_indexed | 2024-03-12T10:54:48Z |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj.art-b51817d24abb4bfa8fda3e07e752f9232023-09-02T06:37:12ZengTaylor & Francis GroupCogent Engineering2331-19162020-01-017110.1080/23311916.2020.17999091799909Self-healing of structural carbon fibres in polymer compositesYongjing Wang0Jake Edgell1Nicholas Graham2Nathaniel Jackson3Hengkun Liang4Duc Truong Pham5University of BirminghamHarwell Space ClusterHarwell Space ClusterHarwell Space ClusterHarwell Space ClusterHarwell Space ClusterCarbon fibre–reinforced composites (CFRCs) are increasingly used in aeroplanes, satellites and offshore wind turbines. Access those systems for repair when the material is damaged may be difficult. Researchers have incorporated vascular systems containing healing agents into CFRCs, enabling them automatically to recover from delamination and debonding. However, self-recovery of the structural fibres that give CFRCs their exceptional mechanical properties is still impossible. This paper describes a method to make CFRCs self-heal following structural fibres’ damage. This involves automatically delivering epoxy-based healing agents containing short carbon fibres (SCFs) to cracks through an embedded vascular system. Cracks are created by disk-cutting through the carbon fibre layer of CFRC specimens. The SCFs in the released healing agents can be aligned in a local electric field produced by applying a potential to the broken structural carbon fibres. The alignment reconnects the structural carbon fibres. Process parameters were investigated to observe their effects on the healing performance and determine the optimum healing agent composition and conditions. In comparison to using conventional healing agents without SCFs and electric alignment which restored 25.2% of a CFRC’s original strength, employing the proposed approach increased the recovery to 47.3%.http://dx.doi.org/10.1080/23311916.2020.1799909self-healing materialscarbon fibre–reinforced compositessmart repairvascular self-healing |
| spellingShingle | Yongjing Wang Jake Edgell Nicholas Graham Nathaniel Jackson Hengkun Liang Duc Truong Pham Self-healing of structural carbon fibres in polymer composites Cogent Engineering self-healing materials carbon fibre–reinforced composites smart repair vascular self-healing |
| title | Self-healing of structural carbon fibres in polymer composites |
| title_full | Self-healing of structural carbon fibres in polymer composites |
| title_fullStr | Self-healing of structural carbon fibres in polymer composites |
| title_full_unstemmed | Self-healing of structural carbon fibres in polymer composites |
| title_short | Self-healing of structural carbon fibres in polymer composites |
| title_sort | self healing of structural carbon fibres in polymer composites |
| topic | self-healing materials carbon fibre–reinforced composites smart repair vascular self-healing |
| url | http://dx.doi.org/10.1080/23311916.2020.1799909 |
| work_keys_str_mv | AT yongjingwang selfhealingofstructuralcarbonfibresinpolymercomposites AT jakeedgell selfhealingofstructuralcarbonfibresinpolymercomposites AT nicholasgraham selfhealingofstructuralcarbonfibresinpolymercomposites AT nathanieljackson selfhealingofstructuralcarbonfibresinpolymercomposites AT hengkunliang selfhealingofstructuralcarbonfibresinpolymercomposites AT ductruongpham selfhealingofstructuralcarbonfibresinpolymercomposites |