Susmel, L. orcid.org/0000-0001-7753-9176 (2021) Fatigue assessment of additively manufactured plain and notched polylactide (PLA). In: Akid, R., Berto, F., Cawte, E.R., Charhardehi, A., Irving, P., Roberts, P., Whittaker, M.T. and Yates, J.R., (eds.) Proceedings of the 8th Engineering Integrity Society International Conference on Durability & Fatigue. Fatigue 2021 - The 8th Engineering Integrity Society International Conference on Durability & Fatigue, 29-31 Mar 2021, Virtual conference. Engineering Integrity Society ISBN 978-0-9544368-5-8
Abstract
The present paper investigates the influence of raster orientation as well as of non-zero mean stresses on the fatigue behaviour of additively manufactured plain and notched polylactide (PLA). PLA is a biodegradable polymer that can be 3D-printed easily and at a relatively low cost. The Theory of Critical Distances (TCD) is the name which has been given to a group of fatigue assessment techniques that are all based on the use of a material critical distance. The accuracy and reliability of the TCD in estimating the fatigue lifetime of additively manufactured PLA is assessed against numerous experimental results generated by testing notched specimens containing different geometrical features. The TCD is seen to be highly accurate. This demonstrates that this design approach can be used successfully to design against fatigue also notched components of 3D-printed PLA.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2021 Engineering Integrity Society. This is an author-produced version of a paper subsequently published in Fatigue 2021 Proceedings. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 07 Apr 2021 10:05 |
Last Modified: | 07 Nov 2022 15:55 |
Status: | Published |
Publisher: | Engineering Integrity Society |
Refereed: | Yes |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:172188 |