| Title: |
Exploring the pseudo-ductility of aligned hybrid discontinuous composites using controlled fibre-type arrangements |
| Authors: |
Finley, JM; Yu, H; Longana, ML; Pimenta, S; Shaffer, MSP; Potter, KD |
| Contributors: |
Engineering & Physical Science Research Council (E; Royal Academy of Engineering |
| Source: |
606 ; 592 |
| Publisher Information: |
Elsevier |
| Publication Year: |
2017 |
| Collection: |
Imperial College London: Spiral |
| Subject Terms: |
0912 Materials Engineering; 0913 Mechanical Engineering; 0901 Aerospace Engineering; Materials |
| Description: |
Pseudo-ductility presents a potential means for preventing catastrophic failure in composite materials; large deformations will prevent brittle fracture and provide warning before final failure. This work explores how the pseudo-ductility and strength of aligned hybrid discontinuous composites can be controlled by manipulating the arrangement of different fibre types. Aligned carbon/glass hybrid specimens with different fibre arrangements are manufactured and tested using a modification to the High Performance Discontinuous Fibre (HiPerDiF) method. Experimental results are complemented by an improved virtual testing framework, which accurately captures the fracture behaviour of a range of hybrid discontinuous composite microstructures. With a randomly intermingled fibre arrangement as a baseline, a 27% increase in strength and a 44% increase in pseudo-ductility can be achieved when low elongation fibres are completely isolated from one-another. Results demonstrate that the HiPerDiF method is the current state-of-the-art for maximising the degree of intermingling and hence the pseudo-ductility of hybrid composites. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
Composites Part A: Applied Science and Manufacturing; http://hdl.handle.net/10044/1/58134; https://dx.doi.org/10.1016/j.compositesa.2017.11.028; AERO/RB1527; RF/133 |
| DOI: |
10.1016/j.compositesa.2017.11.028 |
| Availability: |
http://hdl.handle.net/10044/1/58134; https://doi.org/10.1016/j.compositesa.2017.11.028 |
| Rights: |
© 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Accession Number: |
edsbas.39461C04 |
| Database: |
BASE |