Priest, J., Ghadbeigi, H., Ayvar-Soberanis, S. orcid.org/0000-0002-1899-9743 et al. (2 more authors) (2022) A modified Johnson-Cook constitutive model for improved thermal softening prediction of machining simulations in C45 steel. In: Rech, J. and Outeiro, J., (eds.) Procedia CIRP. 6th CIRP Conference on Surface Integrity, 08-10 Jun 2022, Lyon, France. Elsevier BV , pp. 106-111.
Abstract
A new modified Johnson-Cook model is developed to capture the non-linear thermal softening behaviour below the austenite transformation temperature (723°C) in C45 ferritic-pearlitic steel, which is not captured by the original Johnson-Cook (JC) model. The physical mechanisms responsible for this behaviour are also studied. The model is developed by experimental quasi-static and high strain rate axisymmetric compression testing from 20°C to 720°C and implemented into 3D finite element drilling simulations. The improvement over the original JC model is demonstrated by comparison to experimentally measured torque and thrust force.
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: | © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0). |
Keywords: | C45; machining; Johnson-Cook |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/L016257/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 21 Jun 2022 08:48 |
Last Modified: | 22 Jun 2022 09:42 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.procir.2022.03.022 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:188196 |