A critical appraisal of fracture mechanics methods for self-healing and healable composites characterization
- Creators
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Benazzo, F.
- Rigamonti, D.
- Salamo, G.
- Grande, A.M.
Abstract
Self-healing and healable Fibre Reinforced Polymer composites (FRPs) have tremendous potential in reducing the weight and increasing the lifetime of aerospace structures. While several strategies have been developed to add healing functionality to composites, there is no generally accepted method for the evaluation of their healing efficiency. Most testing approaches are based on interlaminar fracture toughness evaluation which revolves around three widely recognised methods: double-cantilever beam (DCB), three-point end-notch flexure (3-ENF), and four-point end notch flexure (4-ENF) testing. Alternative tests also employed in literature are low-impact velocity, micro-cutting, and short-beam shear (SBS) testing. This paper introduces the advantages and disadvantages of each test method when applied to healing FRPs while highlighting and explaining the large inconsistencies found among investigations. Ultimately, this review provides the necessary tools in choosing the most adequate test method for the characterization of a novel mendable FRP.
Additional Information
© 2023 Elsevier. Data availability. No data was used for the research described in the article. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional details
- Eprint ID
- 121682
- Resolver ID
- CaltechAUTHORS:20230602-251569000.19
- Created
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2023-06-12Created from EPrint's datestamp field
- Updated
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2023-06-12Created from EPrint's last_modified field
- Caltech groups
- GALCIT