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DC Field | Value | Language |
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dc.contributor.author | Hughes, K | - |
dc.contributor.author | Ramos, J | - |
dc.contributor.author | Vignjevic, R | - |
dc.contributor.author | Krzywoblocki, M | - |
dc.contributor.author | Djordjevic, N | - |
dc.contributor.author | Campbell, J | - |
dc.date.accessioned | 2021-12-10T09:12:13Z | - |
dc.date.available | 2021-12-10T09:12:13Z | - |
dc.date.issued | 2021-12-07 | - |
dc.identifier | ORCID iD: Kevin Hughes https://orcid.org/0000-0002-8522-7903 | - |
dc.identifier.citation | Hughes, K. et al. (2022) 'MEM vs. FEM: practical crashworthiness insights for macro element modelling applied to sub-assembly and full vehicle automotive structures', International Journal of Crashworthiness, 27 (6), pp. 1708 - 1725. doi: 10.1080/13588265.2021.2008191. | en_US |
dc.identifier.issn | 1358-8265 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/23712 | - |
dc.description | Acknowledgements: The authors express their thanks to Impact Design Europe and Jaguar LandRover (Dr Tayeb Zeguer and Dr Stefan Hunkeler) for technical support. | - |
dc.description.abstract | Copyright © 2021The Author(s). This paper proposes a modelling approach for integral vehicle structures, applied to frontal crash loading, based on the Macro element approach. Addressing the idealisation of complex sub-structures and full vehicle was through identification of critical parameters for conversion of validated FEM into MEM equivalents through sensitivity analyses. Two examples of impact onto rigid barriers are presented; 1). Frontal crash energy management system (consisting crush-can and longitudinal engine rail), impacting at 8.6 m/s and 2). A complete vehicle impact at 56 km/hr (15m/s). Both case studies predict key features of collapse, with force-time histories agreeing within ±10–15% against FEM. Case study 1 required a 3 second solution time versus 1.5 h (8CPUS) mass-scaled FEM (105k element). For Case study 2, MEM required 7.5mins versus 16.5 hrs for a 3 M element FEM vehicle. For all simulations, LS-DYNA R10.0 and Visual Crash Studio R4.0 used. Developing a framework to overcome accuracy/stability problems, together with issues related to robustness and error reduction is discussed. Model complexity was progressive, involving a-priori knowledge of collapse and/or analysing several sub-assemblies to guide idealisation. The level of agreement demonstrates the advantages of MEM as a complementary method to support conceptual vehicle design and offers significant advantages for design exploration, particularly across multiple crash certification cases. | en_US |
dc.format.extent | 1708 - 1725 | - |
dc.format.medium | Print-Electronic | - |
dc.language.iso | en | en_US |
dc.publisher | Routledge (Taylor & Francis Group) | en_US |
dc.rights | Copyright © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | - |
dc.subject | dynamic axial collapse of thin-walled automotive crash structures | en_US |
dc.subject | component and full vehicle crash onto a rigid barrier | en_US |
dc.subject | macro element method | en_US |
dc.subject | LS-DYNA3D | en_US |
dc.subject | correlation and error minimisation | en_US |
dc.title | MEM vs. FEM: Practical crashworthiness insights for Macro Element Modelling applied to sub-assembly and full vehicle automotive structures | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.1080/13588265.2021.2008191 | - |
dc.relation.isPartOf | International Journal of Crashworthiness | - |
pubs.issue | 6 | - |
pubs.publication-status | Published | - |
pubs.volume | 27 | - |
dc.identifier.eissn | 1754-2111 | - |
dc.rights.holder | The Author(s) | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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FullText.pdf | Copyright © 2021The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | 6.48 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License