de Borst, R. orcid.org/0000-0002-3457-3574 and Chen, L. (2024) Phase‐field modelling of cohesive interface failure. International Journal for Numerical Methods in Engineering, 125 (9). e7412. ISSN 0029-5981
Abstract
A cohesive interface model is proposed in the framework of the phase-field approach. The discrete interface is transformed into a smeared interface by a regularisation strategy. Nevertheless, the fracture energy is made dependent on the displacement jump, which is approximated by a first-order Taylor expansion of the displacement at the interface. Its value relies on a proper choice of the distance parameter from the interface. We have derived an optimal distance parameter from the analytical solution of a uniaxial tension problem. The accuracy of the approach for cohesive interface modelling is validated in a one-dimensional numerical test and is demonstrated by two examples, including a ‘H’-shaped plate and a fibre embedded in an epoxy matrix, featuring straight and curved interfaces.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. International Journal for Numerical Methods in Engineering published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. https://creativecommons.org/licenses/by-nc/4.0/ |
Keywords: | cohesive zone model; displacement jump; interface; optimal distance parameter; phase field model |
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: | 20 Dec 2023 11:01 |
Last Modified: | 01 Nov 2024 15:44 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/nme.7412 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:206749 |
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