Ahmed, A.A. and Susmel, L. orcid.org/0000-0001-7753-9176 (2018) Crack paths in plain and notched specimens of additively manufactured PLA under static loading. In: Proceedings of The 6th International Conference on Crack Paths (CP 2018). The 6th International Conference on Crack Paths (CP 2018), 19-21 Sep 2018, Verona, Italy. ESIS Publishing House
Abstract
The aim of this paper is to investigate the way the infill angle affects, under static loading, the orientation of the crack paths in plain and notched additively manufactured polylactide (PLA). Un-notched specimens and samples containing a variety of geometrical features (i.e., notches) of 3D-printed PLA were fabricated horizontally by making the infill angle vary in the range 0º-90º. The generated experimental results demonstrate that, independently of the infill orientation, static breakage is the result of two different mechanisms, i.e., shear-stress-governed de-bonding between adjacent filaments and normal-stress-governed breakage of the filaments themselves. The combined effect of these two failure mechanisms results in the fact that the orientation of the crack paths fully depends on the orientation of the 3D-printed filaments.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Authors. This is an author-produced version of a paper accepted for publication in Proceedings of The 6th International Conference on Crack Paths (CP 2018). Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Additive Manufacturing; PLA; Crack Paths |
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: | 17 Oct 2018 10:17 |
Last Modified: | 15 Dec 2023 16:11 |
Status: | Published |
Publisher: | ESIS Publishing House |
Refereed: | Yes |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137237 |