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Enhanced non-linear material modelling for analysis and qualification of rollover protective structures

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Show simple item record Agius, Dylan J. Kourousis, Kyriakos I. Takla, Monir Subic, Aleksandar 2017-02-01T09:49:53Z 2017-02-01T09:49:53Z 2016
dc.description peer-reviewed en_US
dc.description.abstract Finite element simulations of a rollover protective structure are an important aspect in its design, as it provides a means of structural integrity qualification prior to the required destructive testing. A good understanding of the rollover protective structure behaviour under simulated loading offers engineering practitioners the opportunity to optimize the design. The testing conditions, which are outlined in the applicable standards, result in plastic deformation of the rollover protective structure, associated with material hardening of various areas of the structure. An accurate description of the material behaviour is important for finite element simulations of the structural response. This research examines some of the hardening models commonly used in simulations of rollover protective structures, which are available in most finite element commercial software, including linear and multi-linear isotropic and kinematic hardening models and non-linear kinematic hardening models. The numerical performance of the plasticity models in representing the material behaviour was compared with the experimental data for commonly used rollover protective structure material. Analysis revealed the potential benefits and drawbacks of the various models. Moreover, a damage-induced softening model was implemented at the structure joints in conjunction with the non-linear hardening models. Enhanced computational results were obtained through this modelling variation, highlighting the importance of material modelling at the primary structure and the joints of a rollover protective structure. en_US
dc.language.iso eng en_US
dc.publisher SAGE en_US
dc.relation.ispartofseries Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering;230 (11), pp. 1558-1568
dc.subject plasticity en_US
dc.subject isotropic hardening en_US
dc.subject kinematic hardening en_US
dc.subject modelling en_US
dc.subject finite element analysis en_US
dc.subject non-linear analysis en_US
dc.subject welds en_US
dc.subject strain softening en_US
dc.subject rollover protective structures en_US
dc.title Enhanced non-linear material modelling for analysis and qualification of rollover protective structures en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1177/0954407015618851
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2644319

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