Cepero-Mejias, F., Curiel-Sosa, J.L., Kerrigan, K. orcid.org/0000-0001-6048-9408 et al. (1 more author) (2019) Chip formation in machining of unidirectional carbon fibre reinforced polymer laminates : FEM based assessment. In: Kerrigan, K., Mativenga, P. and El-Dessouky, H., (eds.) Procedia CIRP. 2nd CIRP Conference on Composite Material Parts Manufacturing, 10-11 Oct 2019, Sheffield, UK. Elsevier , pp. 302-307.
Abstract
Finite-element (FE) method offers a low cost virtual alternative to assist in optimisation of critical process parameters in machining of composites. This study is focussed on understanding the mechanics of chip formation in orthogonal cutting of unidirectional (UD) carbon-fibre-reinforced polymer (CFRP) laminates through development of FE models. Machining responses of UD CRFP laminates with fibre orientation of 45° (measured with respect to the cutting direction) are assessed. Modelling of material removal in the form of fragmented chips is considered. Damage initiation is determined using the Hashin stress criterion for the fibre component, while matrix failure predicted using Puck criteria. Subsequent damage evolution events are modelled using a strain-based softening approach to degrade relevant material properties linearly. Primary numerical results compared with experimental data revealed that developed FE models are able to predict global machining responses (i.e. cutting forces) and characterise various discrete damage modes associated with machining response of quasi-brittle CFRP laminates successfully. The models also provide a valuable insight into variation in chip morphology.
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: | © 2020 The Authors. This is an open access article under the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | Machining; Composite; Damage; Hashin failure criteria; Orthogonal cutting; Puck failure criterion; Finite element |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Advanced Manufacturing Institute (Sheffield) > AMRC Composites Centre (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/L016257/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Jan 2020 11:44 |
Last Modified: | 09 Jan 2020 06:37 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.procir.2019.09.005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:155020 |
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Licence: CC-BY-NC-ND 4.0