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Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure

Flexural properties of 3D-printed carbon fibre (CF) composites are investigated, experimentally and numerically. A series of 3-point bending experimental tests are conducted on CF composite specimens, and a series of 3-point bending virtual tests are simulated in LS-DYNA using a composite modelling...

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Main Authors: Wan A Hamid, Wan Luqman Hakim, Iannucci, Lorenzo, Robinson, Paul
Format: Article
Language:English
English
Published: Elsevier 2023
Subjects:
TL500 Aeronautics
Online Access:http://irep.iium.edu.my/106987/7/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites_SCOPUS.pdf
http://irep.iium.edu.my/106987/8/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites.pdf
http://irep.iium.edu.my/106987/
https://www.sciencedirect.com/science/article/pii/S2666682022001074/pdfft?md5=4cc0e2a9029e6cc4280d10bc5290f707&pid=1-s2.0-S2666682022001074-main.pdf
https://doi.org/10.1016/j.jcomc.2022.100344
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spelling my.iium.irep.1069872023-09-22T04:19:34Z http://irep.iium.edu.my/106987/ Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure Wan A Hamid, Wan Luqman Hakim Iannucci, Lorenzo Robinson, Paul TL500 Aeronautics Flexural properties of 3D-printed carbon fibre (CF) composites are investigated, experimentally and numerically. A series of 3-point bending experimental tests are conducted on CF composite specimens, and a series of 3-point bending virtual tests are simulated in LS-DYNA using a composite modelling approach, which is user defined integration points through the composite thickness. The flexural stress-strain results are compared, and they show good agreement within the elastic region. In the plastic region, the experimental flexural modulus reduces significantly, which remains constant for a certain range of flexural strain, before structural failure. A new hypothesis on the flexural properties of the 3D-printed CF composite is suggested, which is the specimen behaves as two stacks of individual beams, after yielding/delamination. The hypothesis is supported by another series of FE simulations on the composite, modelled as two stacked composite beams, and subjected to 3-point bending load. Then the capability of the composite 3D-printing to manufacture a structure with complex geometries and to manufacture several parts as a single structure, are exploited to fabricate a CF composite corrugated structure with a trailing edge section. The structure which represents an internal structure of a morphing aerofoil is actuated by a NiTi shape memory alloy (SMA) wire with a 1.6% recoverable strain. A trailing edge deflection of 6.0 mm is obtained, which is measured using an IMETRUM optical system. It is reasonably close to the predicted deflection of 7.3 mm shown in the FE simulation, using a newly developed UMAT for SMA-actuation, in an explicit LS-DYNA. Elsevier 2023-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/106987/7/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/106987/8/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites.pdf Wan A Hamid, Wan Luqman Hakim and Iannucci, Lorenzo and Robinson, Paul (2023) Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure. Composites Part C: Open Access, 10. pp. 1-11. E-ISSN 2666-6820 https://www.sciencedirect.com/science/article/pii/S2666682022001074/pdfft?md5=4cc0e2a9029e6cc4280d10bc5290f707&pid=1-s2.0-S2666682022001074-main.pdf https://doi.org/10.1016/j.jcomc.2022.100344
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic TL500 Aeronautics
spellingShingle TL500 Aeronautics
Wan A Hamid, Wan Luqman Hakim
Iannucci, Lorenzo
Robinson, Paul
Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
description Flexural properties of 3D-printed carbon fibre (CF) composites are investigated, experimentally and numerically. A series of 3-point bending experimental tests are conducted on CF composite specimens, and a series of 3-point bending virtual tests are simulated in LS-DYNA using a composite modelling approach, which is user defined integration points through the composite thickness. The flexural stress-strain results are compared, and they show good agreement within the elastic region. In the plastic region, the experimental flexural modulus reduces significantly, which remains constant for a certain range of flexural strain, before structural failure. A new hypothesis on the flexural properties of the 3D-printed CF composite is suggested, which is the specimen behaves as two stacks of individual beams, after yielding/delamination. The hypothesis is supported by another series of FE simulations on the composite, modelled as two stacked composite beams, and subjected to 3-point bending load. Then the capability of the composite 3D-printing to manufacture a structure with complex geometries and to manufacture several parts as a single structure, are exploited to fabricate a CF composite corrugated structure with a trailing edge section. The structure which represents an internal structure of a morphing aerofoil is actuated by a NiTi shape memory alloy (SMA) wire with a 1.6% recoverable strain. A trailing edge deflection of 6.0 mm is obtained, which is measured using an IMETRUM optical system. It is reasonably close to the predicted deflection of 7.3 mm shown in the FE simulation, using a newly developed UMAT for SMA-actuation, in an explicit LS-DYNA.
format Article
author Wan A Hamid, Wan Luqman Hakim
Iannucci, Lorenzo
Robinson, Paul
author_facet Wan A Hamid, Wan Luqman Hakim
Iannucci, Lorenzo
Robinson, Paul
author_sort Wan A Hamid, Wan Luqman Hakim
title Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
title_short Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
title_full Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
title_fullStr Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
title_full_unstemmed Flexural behaviour of 3D-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
title_sort flexural behaviour of 3d-printed carbon fibre composites: experimental and virtual tests - application to composite adaptive structure
publisher Elsevier
publishDate 2023
url http://irep.iium.edu.my/106987/7/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites_SCOPUS.pdf
http://irep.iium.edu.my/106987/8/106987_Flexural%20behaviour%20of%203D-printed%20carbon%20fibre%20composites.pdf
http://irep.iium.edu.my/106987/
https://www.sciencedirect.com/science/article/pii/S2666682022001074/pdfft?md5=4cc0e2a9029e6cc4280d10bc5290f707&pid=1-s2.0-S2666682022001074-main.pdf
https://doi.org/10.1016/j.jcomc.2022.100344
_version_ 1778160506985512960
score 13.211869

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