Impact behaviour of 3D printed cellular structures for mouthguard applications
Ethylene-Vinyl Acetate (EVA) is the most popular material for manufacturing mouthguards. However, EVA mouthguards are problematic, for example inconsistent thicknesses across the mouthguard. Additive manufacturing provides a promising solution to this problem, as it can manufacture mouthguards with...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Springer Nature
2022
|
| _version_ | 1797107159564025856 |
|---|---|
| author | Saunders, J Lißner, M Townsend, D Petrinic, N Bergmann, J |
| author_facet | Saunders, J Lißner, M Townsend, D Petrinic, N Bergmann, J |
| author_sort | Saunders, J |
| collection | OXFORD |
| description | Ethylene-Vinyl Acetate (EVA) is the most popular material for manufacturing mouthguards. However, EVA mouthguards are problematic, for example inconsistent thicknesses across the mouthguard. Additive manufacturing provides a promising solution to this problem, as it can manufacture mouthguards with a greater precision. This paper compares the energy dissipation of EVA, the current material used for mouthguards, to various designs of a 3D printed material, some of which contain air cells. Impact testing was carried out at three different strain rates. The Split-Hopkinson bar was used for medium and high strain rate tests, and an Instron test rig was used for low strain rate testing. The best performing design dissipated 25% more energy than EVA in the medium and high strain rate testing respectively while the low strain rate testing was inconclusive. This research has shown that additive manufacturing provides a viable method of manufacturing mouthguards. This opens up the opportunity for embedding electronics/sensors into additive manufactured mouthguards. |
| first_indexed | 2024-03-07T07:10:33Z |
| format | Journal article |
| id | oxford-uuid:4581491a-6074-4737-bf68-d0944bfe7860 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:10:33Z |
| publishDate | 2022 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:4581491a-6074-4737-bf68-d0944bfe78602022-06-27T11:52:15ZImpact behaviour of 3D printed cellular structures for mouthguard applicationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4581491a-6074-4737-bf68-d0944bfe7860EnglishSymplectic ElementsSpringer Nature2022Saunders, JLißner, MTownsend, DPetrinic, NBergmann, JEthylene-Vinyl Acetate (EVA) is the most popular material for manufacturing mouthguards. However, EVA mouthguards are problematic, for example inconsistent thicknesses across the mouthguard. Additive manufacturing provides a promising solution to this problem, as it can manufacture mouthguards with a greater precision. This paper compares the energy dissipation of EVA, the current material used for mouthguards, to various designs of a 3D printed material, some of which contain air cells. Impact testing was carried out at three different strain rates. The Split-Hopkinson bar was used for medium and high strain rate tests, and an Instron test rig was used for low strain rate testing. The best performing design dissipated 25% more energy than EVA in the medium and high strain rate testing respectively while the low strain rate testing was inconclusive. This research has shown that additive manufacturing provides a viable method of manufacturing mouthguards. This opens up the opportunity for embedding electronics/sensors into additive manufactured mouthguards. |
| spellingShingle | Saunders, J Lißner, M Townsend, D Petrinic, N Bergmann, J Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title | Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title_full | Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title_fullStr | Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title_full_unstemmed | Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title_short | Impact behaviour of 3D printed cellular structures for mouthguard applications |
| title_sort | impact behaviour of 3d printed cellular structures for mouthguard applications |
| work_keys_str_mv | AT saundersj impactbehaviourof3dprintedcellularstructuresformouthguardapplications AT lißnerm impactbehaviourof3dprintedcellularstructuresformouthguardapplications AT townsendd impactbehaviourof3dprintedcellularstructuresformouthguardapplications AT petrinicn impactbehaviourof3dprintedcellularstructuresformouthguardapplications AT bergmannj impactbehaviourof3dprintedcellularstructuresformouthguardapplications |