Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres
| Autor: | Meisam Jalalvand, Marco L. Longana, HaNa Yu, Kevin D Potter, Michael R Wisnom |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
A. Hybrid Tension (physics) Composite number Modulus 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences C. Analytical modelling Mechanics of Materials Catastrophic failure D failure Ceramics and Composites TJ A. Discontinuous reinforcement Elongation Composite material 0210 nano-technology Ductility D. Failure |
| Zdroj: | Yu, H, Longana, M, Jalalvand, M, Wisnom, M & Potter, K 2018, ' Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres ', Composites Part A-Applied Science and Manufacturing, vol. 105, pp. 40-56 . https://doi.org/10.1016/j.compositesa.2017.11.005 Yu, H N, Longana, M L, Jalalvand, M, Wisnom, M R & Potter, K D 2018, ' Hierarchical pseudo-ductile hybrid composites combining continuous and highly aligned discontinuous fibres ', Composites Part A: Applied Science and Manufacturing, vol. 105, pp. 40-56 . https://doi.org/10.1016/j.compositesa.2017.11.005 |
| ISSN: | 1359-835X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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