Thermomechanical analysis of strain recovery in shape memory alloys under variable non-isothermal conditions

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dc.date.accessioned2024-10-04T11:27:58Z
dc.date.available2024-10-04T11:27:58Z
dc.date.issued2024-09-05
dc.description.sponsorshipGefördert im Rahmen des Projekts DEAL
dc.identifierdoi:10.17170/kobra-2024100410917
dc.identifier.urihttp://hdl.handle.net/123456789/16075
dc.language.isoeng
dc.relation.doidoi:10.1002/pamm.202400203
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject.ddc600
dc.subject.swdThermomechanikger
dc.subject.swdDehnungger
dc.subject.swdMemory-Legierungger
dc.titleThermomechanical analysis of strain recovery in shape memory alloys under variable non-isothermal conditionseng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractThe present work focuses on size dependencies in thermo-mechanical testing of shape memory alloys and a phenomenon occurring for direction-dependent activation. Emphasis is on strain recovery which is enabled by a martensiteto-austenite transformation, modeled using a phenomenological evolution equation. In transient numerical studies performed with the finite element method for a non-isothermal tension testing case, the influence of the Fourier and Stefan number is investigated. The results indicate that, in experiments, the Fourier number should ideally be much greater than ten to prevent falsification by the current Stefan number. An additional study is carried out for the activation of a beam in its thickness direction. It shows that the gradient in transformation causes bending, which can only be considered in simulations by adequate spatial resolution.eng
dcterms.accessRightsopen access
dcterms.creatorDescher, Stefan
dcterms.creatorKrooß, Philipp
dcterms.creatorEwald, Felix
dcterms.creatorKuhl, Detlef
dcterms.source.articlenumbere-202400203
dcterms.source.identifiereissn:1617-7061
dcterms.source.issueIssue 2
dcterms.source.journalProceedings in Applied Mathematics & Mechanicseng
dcterms.source.volumeVolume 24
kup.iskupfalse

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