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Yoo, Sanghyun and Denis, Dalli and Catalanotti, Giuseppe and Toso, Nathalie and Kessel, Fiona and Voggenreiter, Heinz (2022) Dynamic intralaminar fracture toughness characterisation of unidirectional carbon fibre-reinforced polymer composites using a high-speed servo-hydraulic test set-up. Composite Structures, 295 (115838). Elsevier. doi: 10.1016/j.compstruct.2022.115838. ISSN 0263-8223.
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Abstract
This paper presents experimental investigations on the in-plane shear behaviour and intralaminar fibre-dominated fracture of UD IM7/8552 carbon-epoxy composites, loaded under quasi-static (QS) and intermediate strain rates (IR). Dynamic tensile testing is carried out using a previously proposed test methodology involving a high-speed servo-hydraulic test machine and Digital Image Correlation (DIC), with the aim of providing an alternative means to Split-Hopkinson pressure bar testing for the characterisation of similar composite materials at intermediate strain rates. Three sizes of Double-Edge Notched Tension (DENT) specimens are tested at QS and IR to obtain the mode I intralaminar fracture toughness. The results of both in-plane shear and fracture toughness tests compare well with literature data, supporting the proposed methodology. This study is a first step towards standardising a test method for measuring various mechanical properties of fibre-reinforced polymer (FRP) composites at intermediate strain rates.
| Item URL in elib: | https://elib.dlr.de/189732/ | |||||||||||||||||||||
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| Document Type: | Article | |||||||||||||||||||||
| Title: | Dynamic intralaminar fracture toughness characterisation of unidirectional carbon fibre-reinforced polymer composites using a high-speed servo-hydraulic test set-up | |||||||||||||||||||||
| Authors: |
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| Date: | 1 September 2022 | |||||||||||||||||||||
| Journal or Publication Title: | Composite Structures | |||||||||||||||||||||
| Refereed publication: | Yes | |||||||||||||||||||||
| Open Access: | No | |||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||||||||
| Volume: | 295 | |||||||||||||||||||||
| DOI: | 10.1016/j.compstruct.2022.115838 | |||||||||||||||||||||
| Publisher: | Elsevier | |||||||||||||||||||||
| ISSN: | 0263-8223 | |||||||||||||||||||||
| Status: | Published | |||||||||||||||||||||
| Keywords: | : Strain-rate testing; Carbon fibre composites; Digital Image Correlation; Fracture toughness; Size effect. | |||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||||||||
| HGF - Program Themes: | Components and Systems | |||||||||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||||||||
| DLR - Program: | L CS - Components and Systems | |||||||||||||||||||||
| DLR - Research theme (Project): | L - Structural Materials and Design | |||||||||||||||||||||
| Location: | Stuttgart | |||||||||||||||||||||
| Institutes and Institutions: | Institute of Structures and Design > Ceramic Composite Structures Institute of Structures and Design > Structural Integrity Institute of Structures and Design > Leitungsbereich BT | |||||||||||||||||||||
| Deposited By: | Yoo, Sanghyun | |||||||||||||||||||||
| Deposited On: | 08 Nov 2022 09:16 | |||||||||||||||||||||
| Last Modified: | 08 Nov 2022 09:16 |
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