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Thermodynamical model of NiTi shape memory alloys including plastic deformation mechanisms
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SYSNO ASEP 0564469 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Thermodynamical model of NiTi shape memory alloys including plastic deformation mechanisms Author(s) Sedlák, Petr (UT-L) RID, ORCID
Frost, Miroslav (UT-L) RID, ORCID
Seiner, Hanuš (UT-L) RID, ORCID
Heller, Luděk (FZU-D) RID, ORCID
Šittner, Petr (FZU-D) RID, ORCIDNumber of authors 5 Source Title Conference Proceedings from International Conference on Shape Memory and Superelastic Technologies, SMST 2022. - Materials Park, Ohio : ASM International, 2022 - ISBN 978-171385538-5 Pages s. 65-66 Number of pages 2 s. Publication form Online - E Action International Conference on Shape Memory and Superelastic Technologies 2022, SMST 2022 Event date 16.05.2022 - 20.05.2022 VEvent location Carlsbad Country US - United States Event type WRD Language eng - English Country US - United States Keywords constitutive model ; martensitic phase transformation ; plasticity ; NiTi Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Materials engineering Subject RIV - cooperation Institute of Physics - Solid Matter Physics ; Magnetism R&D Projects GA22-20181S GA ČR - Czech Science Foundation (CSF) LTAUSA18199 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UT-L - RVO:61388998 ; FZU-D - RVO:68378271 EID SCOPUS 85135328404 DOI 10.31399/asm.cp.smst2022p0065 Annotation This contribution presents an extension of a well-established constitutive model for NiTi covering both reversible (elastic, martensitic transformation, martensite reorientation) and irreversible (plastic) deformation mechanisms. Besides the inclusion of mechanisms of plastic deformation in both austenitic and martensitic phases in an independent manner, the model also newly captures more complex coupled phenomena of martensitic transformation and plastic deformation, such as transformation-induced plasticity, stabilization of martensite by plastic deformation, or plasticity-induced microstrain heterogeneity leading to functional fatigue. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2023 Electronic address https://dl.asminternational.org/shape-memory/proceedings/SMST%202022/84291/65/18983
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