DcAFF (Discontinuous Aligned Fibre Filament) – mechanical properties investigation on multilayer 3D printed parts
DcAFF (Discontinuous Aligned Fibre Filament) – mechanical properties investigation on multilayer 3D printed parts
DcAFF (Discontinuous Aligned Fibre Filament) is a novel thermoplastic filament developed for 3D printing. This filament is reinforced with highly aligned discontinuous fibres and is based on the High Performance Discontinuous Fibre (HiPerDiF) method which produces thin tapes suitable for a range of different composite manufacturing processes. The HiPerDiF, using fibres longer than the critical length, provides mechanical performance comparable to continuous fibre composites with the high formability typical of short fibre composites. Thanks to the development of the third-generation HiPerDiF machine and the DcAFF filament forming method, circular DcAFF filaments can be produced consistently and at high rates. In this paper, both the physical properties and the internal architecture of the produced filament were investigated. In particular, μCT scanning and image post-processing were used to quantify fibre alignment. The designed filament-forming process ensures that the large fraction of the fibres in the final product are well aligned with the longitudinal axis of the filament. The mechanical properties of the multilayer DcAFF 3D printing part are presented for the first time in this paper with tensile, short beam shear (SBS), and open-hole tensile testing. The comparison with the previous studies and data in the literature shows comparable or indeed superior stiffness of DcAFF over existing methods for 3D printing composite parts; however, to be able to consider this material as a viable candidate for high-performance 3D printing further improvements are required in term of strength, e.g. increasing fibre-matrix adhesion or substituting the proof-of-concept PLA matrix with a high performance one.
Additive layer manufacturing, Aligned discontinuous fibre, Fused filament fabrication, Multilayer 3D printing, Open hole tensile testing, Short beam shear testing, Tensile testing, Thermoplastic
Krajangsawasdi, Narongkorn
f26ea0ec-91be-4725-be8d-b81b7e107e87
Alvarez-Borges, Fernando
5512cdfd-6ad3-475f-8aec-2fc767607314
Ball, Keiran M.
b9f5b1bd-02b6-4c82-86dc-335a08738be6
Mavrogordato, Mark N.
f3e0879b-118a-463a-a130-1c890e9ab547
Hamerton, Ian
356fb6af-3661-493e-af0e-198da5a3b7ff
Woods, Benjamin K.S.
98f701b4-eceb-4f50-b2dd-5892f836a1fa
Ivanov, Dmitry S.
383c5b01-7546-48df-b2ab-4ff2b83270e1
Longana, Marco L.
43a4dd27-a29f-4538-8345-c52350001511
2 August 2023
Krajangsawasdi, Narongkorn
f26ea0ec-91be-4725-be8d-b81b7e107e87
Alvarez-Borges, Fernando
5512cdfd-6ad3-475f-8aec-2fc767607314
Ball, Keiran M.
b9f5b1bd-02b6-4c82-86dc-335a08738be6
Mavrogordato, Mark N.
f3e0879b-118a-463a-a130-1c890e9ab547
Hamerton, Ian
356fb6af-3661-493e-af0e-198da5a3b7ff
Woods, Benjamin K.S.
98f701b4-eceb-4f50-b2dd-5892f836a1fa
Ivanov, Dmitry S.
383c5b01-7546-48df-b2ab-4ff2b83270e1
Longana, Marco L.
43a4dd27-a29f-4538-8345-c52350001511
Krajangsawasdi, Narongkorn, Alvarez-Borges, Fernando, Ball, Keiran M., Mavrogordato, Mark N., Hamerton, Ian, Woods, Benjamin K.S., Ivanov, Dmitry S. and Longana, Marco L.
(2023)
DcAFF (Discontinuous Aligned Fibre Filament) – mechanical properties investigation on multilayer 3D printed parts.
Composites Part B: Engineering, 264, [110903].
(doi:10.1016/j.compositesb.2023.110903).
Abstract
DcAFF (Discontinuous Aligned Fibre Filament) is a novel thermoplastic filament developed for 3D printing. This filament is reinforced with highly aligned discontinuous fibres and is based on the High Performance Discontinuous Fibre (HiPerDiF) method which produces thin tapes suitable for a range of different composite manufacturing processes. The HiPerDiF, using fibres longer than the critical length, provides mechanical performance comparable to continuous fibre composites with the high formability typical of short fibre composites. Thanks to the development of the third-generation HiPerDiF machine and the DcAFF filament forming method, circular DcAFF filaments can be produced consistently and at high rates. In this paper, both the physical properties and the internal architecture of the produced filament were investigated. In particular, μCT scanning and image post-processing were used to quantify fibre alignment. The designed filament-forming process ensures that the large fraction of the fibres in the final product are well aligned with the longitudinal axis of the filament. The mechanical properties of the multilayer DcAFF 3D printing part are presented for the first time in this paper with tensile, short beam shear (SBS), and open-hole tensile testing. The comparison with the previous studies and data in the literature shows comparable or indeed superior stiffness of DcAFF over existing methods for 3D printing composite parts; however, to be able to consider this material as a viable candidate for high-performance 3D printing further improvements are required in term of strength, e.g. increasing fibre-matrix adhesion or substituting the proof-of-concept PLA matrix with a high performance one.
Text
09- 4th paper - Layers investigation
- Accepted Manuscript
More information
Accepted/In Press date: 15 July 2023
e-pub ahead of print date: 24 July 2023
Published date: 2 August 2023
Additional Information:
Funding Information:
This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) through the ACCIS Doctoral Training Centre [ EP/L016028/1 ] and the EPSRC “High Performance Discontinuous Fibre Composites a sustainable route to the next generation of composites” [ EP/P027393/1 ] grant. μ-CT scanning was supported by the National Research Facility for Lab X-ray CT (NXCT) at the μ-VIS X-ray Imaging Centre, University of Southampton , through EPSRC grant [ EP/T02593X/1 ]. N.K. is supported by the Royal Thai Government scholarship provided by the Office of the Civil Service Commission (OCSC) , Royal Government of Thailand.
Funding Information:
The authors thank Patrick Sullivan for conducting FARSEP fibre length measurement and also thank the support from μ-VIS X-ray Imaging Centre for the CT scanning and Bristol Composites Institute Laboratory Technical Support and Development Team for their constructive help and assistance.
Publisher Copyright:
© 2023
Keywords:
Additive layer manufacturing, Aligned discontinuous fibre, Fused filament fabrication, Multilayer 3D printing, Open hole tensile testing, Short beam shear testing, Tensile testing, Thermoplastic
Identifiers
Local EPrints ID: 481003
URI: http://eprints.soton.ac.uk/id/eprint/481003
ISSN: 1359-8368
PURE UUID: 4b4c179e-5810-40c6-9636-2be3762a8272
Catalogue record
Date deposited: 14 Aug 2023 16:57
Last modified: 10 Apr 2024 02:08
Export record
Altmetrics
Contributors
Author:
Narongkorn Krajangsawasdi
Author:
Fernando Alvarez-Borges
Author:
Ian Hamerton
Author:
Benjamin K.S. Woods
Author:
Dmitry S. Ivanov
Author:
Marco L. Longana
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics