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Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions

Jonathan D Howard, Dominic Eggbeer, Peter Dorrington, Feras Korkees Orcid Logo, Lorna H Tasker

Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, Volume: 234, Issue: 5

Swansea University Authors: Peter Dorrington, Feras Korkees Orcid Logo

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DOI (Published version): 10.1177/0954411919899844

Abstract

The provision of wheelchair seating accessories, such as head supports, is often limited to the use of commercial products. Additive manufacturing has the potential to produce custom seating components, but there are very few examples of published work. This article reports a method of utilising 3D...

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Published in: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
ISSN: 0954-4119 2041-3033
Published: SAGE Publications 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53210
first_indexed 2020-01-13T13:30:05Z
last_indexed 2020-11-24T04:07:07Z
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spelling 2020-11-23T13:17:40.2035194 v2 53210 2020-01-13 Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions d3a8f81f0c9d8676122f844966405ed9 Peter Dorrington Peter Dorrington true false 4d34f40e38537261da3ad49a0dd2be09 0000-0002-5131-6027 Feras Korkees Feras Korkees true false 2020-01-13 ACEM The provision of wheelchair seating accessories, such as head supports, is often limited to the use of commercial products. Additive manufacturing has the potential to produce custom seating components, but there are very few examples of published work. This article reports a method of utilising 3D scanning, computer-aided design and additive manufacturing for the fabrication of a custom head support for a wheelchair. Three custom head supports, of the same shape, were manufactured in nylon using a continuous filament fabrication machine. The custom head supports were tested against an equivalent and widely used commercial head support using ISO 16840-3:2014. The head supports were statically loaded in two configurations, one modelling a posterior force on the inner rear surface and the other modelling a lateral force on the side. The posterior force resulted in failure of the supporting bracketry before the custom head support. A similar magnitude of forces was applied laterally for the custom and commercial head support. When the load was removed, the custom recovered to its original shape while the commercial sustained plastic deformation. The addition of a joint in the head support increased the maximum displacement, 128.6 mm compared to 71.7 mm, and the use of carbon fibre resulted in the head support sustaining a higher force at larger displacements, increase in 30 N. Based on the deformation and recovery characteristics, the results indicate that additive manufacturing could be an appropriate method to produce lighter weight, highly customised, cost-effective and safe head supports for wheelchair users. Journal Article Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 234 5 SAGE Publications 0954-4119 2041-3033 Additive manufacturing, 3D printing, wheelchairs, custom seating, rehabilitation engineering 1 5 2020 2020-05-01 10.1177/0954411919899844 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University 2020-11-23T13:17:40.2035194 2020-01-13T10:08:45.3837854 Professional Services ISS - Uncategorised Jonathan D Howard 1 Dominic Eggbeer 2 Peter Dorrington 3 Feras Korkees 0000-0002-5131-6027 4 Lorna H Tasker 5 53210__16483__60a52021d1894aba81ca8f6bd61c1ca9.pdf howard2020.pdf 2020-01-30T09:43:54.8570995 Output 786991 application/pdf Accepted Manuscript true true
title Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
spellingShingle Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
Peter Dorrington
Feras Korkees
title_short Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
title_full Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
title_fullStr Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
title_full_unstemmed Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
title_sort Evaluating additive manufacturing for the production of custom head supports: A comparison against a commercial head support under static loading conditions
author_id_str_mv d3a8f81f0c9d8676122f844966405ed9
4d34f40e38537261da3ad49a0dd2be09
author_id_fullname_str_mv d3a8f81f0c9d8676122f844966405ed9_***_Peter Dorrington
4d34f40e38537261da3ad49a0dd2be09_***_Feras Korkees
author Peter Dorrington
Feras Korkees
author2 Jonathan D Howard
Dominic Eggbeer
Peter Dorrington
Feras Korkees
Lorna H Tasker
format Journal article
container_title Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
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publishDate 2020
institution Swansea University
issn 0954-4119
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doi_str_mv 10.1177/0954411919899844
publisher SAGE Publications
college_str Professional Services
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hierarchy_top_title Professional Services
hierarchy_parent_id professionalservices
hierarchy_parent_title Professional Services
department_str ISS - Uncategorised{{{_:::_}}}Professional Services{{{_:::_}}}ISS - Uncategorised
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description The provision of wheelchair seating accessories, such as head supports, is often limited to the use of commercial products. Additive manufacturing has the potential to produce custom seating components, but there are very few examples of published work. This article reports a method of utilising 3D scanning, computer-aided design and additive manufacturing for the fabrication of a custom head support for a wheelchair. Three custom head supports, of the same shape, were manufactured in nylon using a continuous filament fabrication machine. The custom head supports were tested against an equivalent and widely used commercial head support using ISO 16840-3:2014. The head supports were statically loaded in two configurations, one modelling a posterior force on the inner rear surface and the other modelling a lateral force on the side. The posterior force resulted in failure of the supporting bracketry before the custom head support. A similar magnitude of forces was applied laterally for the custom and commercial head support. When the load was removed, the custom recovered to its original shape while the commercial sustained plastic deformation. The addition of a joint in the head support increased the maximum displacement, 128.6 mm compared to 71.7 mm, and the use of carbon fibre resulted in the head support sustaining a higher force at larger displacements, increase in 30 N. Based on the deformation and recovery characteristics, the results indicate that additive manufacturing could be an appropriate method to produce lighter weight, highly customised, cost-effective and safe head supports for wheelchair users.
published_date 2020-05-01T13:58:44Z
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