Alanazi, N., Kolawole, J.T., Buswell, R. et al. (1 more author) (2022) The Theory of Critical Distances to assess the effect of cracks/manufacturing defects on the static strength of 3D-printed concrete. Engineering Fracture Mechanics, 269. 108563. ISSN 0013-7944
Abstract
The present paper deals with the use of the Theory of Critical Distances to model the detrimental effect of cracks and manufacturing defects in 3D-printed concrete subjected to static loading. The robustness of the proposed approach was assessed against a number of experimental results that were generated by testing, under three-point bending, 3D-printed rectangular section specimens weakened by saw-cut crack-like sharp notches, surface roughness (due to the extrusion filaments) and manufacturing defects. The sound agreement between experiments and predictive model allowed us to demonstrate that the Theory of Critical Distances is not only a reliable design approach, but also a powerful tool suitable for guiding and informing effectively the additive manufacturing process.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Additive manufacturing; Concrete; Crack; Defects; Critical distance |
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) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/S019650/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 Jun 2022 08:39 |
Last Modified: | 06 Jun 2022 08:39 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.engfracmech.2022.108563 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:187043 |