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Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres

Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres
Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres
Hybrid composites allow avoiding catastrophic failure, a key limitation of composite materials, and can provide a balanced suite of modulus, strength and ductility. The aim of this research is to manufacture hierarchical hybrid composites using a combination of continuous high elongation fibres and intermingled hybrids made out of highly aligned discontinuous fibres with lower elongation to achieve pseudo-ductility through control of failure development. The HiPerDiF (High Performance Discontinuous Fibres) method that allows a high level of fibre alignment, leading to excellent mechanical properties close to continuous fibre composites, was used to produce the intermingled hybrid discontinuous fibre preforms. The hierarchical hybrid composite configuration is composed of an intermingled hybrid discontinuous fibre layer sandwiched between continuous S-glass layers. The overall stress-strain response of the intermingled hybrid composites and the hierarchical hybrid composites was investigated for different fibre types and ratios. The analytical modelling approach previously developed by the authors for interlaminated hybrid composites was modified for this new type of hierarchical composite. The experimental results were analysed and the analytical model was used to evaluate the optimised balance of constituents to maximise pseudo-ductile strain in tension.
A. discontinuous reinforcement, A. hybrid, C. analytical modelling, D. failure
1359-835X
40-56
Yu, HaNa
5512fdbb-42be-4e9b-b9cd-990a81174fa6
Longana, Marco L.
43a4dd27-a29f-4538-8345-c52350001511
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Potter, Kevin D.
c13b1a00-1c83-42a8-94df-a263c7f2a7da
Yu, HaNa
5512fdbb-42be-4e9b-b9cd-990a81174fa6
Longana, Marco L.
43a4dd27-a29f-4538-8345-c52350001511
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Wisnom, Michael R.
93bec88e-5256-49f2-9869-5ac551e18d7a
Potter, Kevin D.
c13b1a00-1c83-42a8-94df-a263c7f2a7da

Yu, HaNa, Longana, Marco L., Jalalvand, Meisam, Wisnom, Michael R. and Potter, Kevin D. (2018) Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres. Composites Part A: Applied Science and Manufacturing, 105, 40-56. (doi:10.1016/j.compositesa.2017.11.005).

Record type: Article

Abstract

Hybrid composites allow avoiding catastrophic failure, a key limitation of composite materials, and can provide a balanced suite of modulus, strength and ductility. The aim of this research is to manufacture hierarchical hybrid composites using a combination of continuous high elongation fibres and intermingled hybrids made out of highly aligned discontinuous fibres with lower elongation to achieve pseudo-ductility through control of failure development. The HiPerDiF (High Performance Discontinuous Fibres) method that allows a high level of fibre alignment, leading to excellent mechanical properties close to continuous fibre composites, was used to produce the intermingled hybrid discontinuous fibre preforms. The hierarchical hybrid composite configuration is composed of an intermingled hybrid discontinuous fibre layer sandwiched between continuous S-glass layers. The overall stress-strain response of the intermingled hybrid composites and the hierarchical hybrid composites was investigated for different fibre types and ratios. The analytical modelling approach previously developed by the authors for interlaminated hybrid composites was modified for this new type of hierarchical composite. The experimental results were analysed and the analytical model was used to evaluate the optimised balance of constituents to maximise pseudo-ductile strain in tension.

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More information

Accepted/In Press date: 9 November 2017
e-pub ahead of print date: 10 November 2017
Published date: 28 February 2018
Keywords: A. discontinuous reinforcement, A. hybrid, C. analytical modelling, D. failure

Identifiers

Local EPrints ID: 446789
URI: http://eprints.soton.ac.uk/id/eprint/446789
ISSN: 1359-835X
PURE UUID: 8d20a4ad-83dd-4a22-ab34-19c5fc4b731f
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 22 Feb 2021 17:33
Last modified: 16 Sep 2021 11:14

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Contributors

Author: HaNa Yu
Author: Marco L. Longana
Author: Michael R. Wisnom
Author: Kevin D. Potter

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