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Cyclic plasticity of the as-built EOS maraging steel: preliminary experimental and computational results

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Show simple item record Mooney, Barry Agius, Dylan J. Kourousis, Kyriakos I. 2020-03-19T11:44:13Z 2020-03-19T11:44:13Z 2020
dc.description peer-reviewed en_US
dc.description.abstract This short communication offers a preliminary view on ongoing research conducted on the as-built EOS maraging steel 300. The material’s cyclic elastoplastic characteristics under strain-controlled loading have been investigated experimentally. Specimens fabricated under two primary orientations, horizontally and vertically to the build plate, have been tested. The obtained stress–strain hysteresis loops exhibited symmetry, with the vertical specimen showing a higher plastic strain energy dissipation capability than the horizontal specimen. Modelling of the material’s elastoplastic behaviour was performed with a commonly used kinematic hardening rule, combined with both isotropic and anisotropic yield functions and elasticity moduli. The obtained simulations of the hysteresis loops, from the implementation of these two plasticity models, indicate the advantage of the anisotropic modelling approach over the isotropic approach. The anisotropic plasticity model describes in a more representative way the inherent elastic and plastic anisotropy of the as-built material. Further research is underway to explore the low cycle fatigue performance of this additively manufactured metal. en_US
dc.language.iso eng en_US
dc.publisher MDPI en_US
dc.relation.ispartofseries Applied Sciences;10, 1232
dc.subject maraging steel en_US
dc.subject plasticity en_US
dc.subject cyclic loading en_US
dc.subject low cycle fatigue en_US
dc.subject additive manufacturing en_US
dc.title Cyclic plasticity of the as-built EOS maraging steel: preliminary experimental and computational results 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 10.3390/app10041232
dc.contributor.sponsor IRC en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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