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Simulation of mechanical behavior of NiTi shape memory alloys under complex loading: Model formulation and its performance in applications
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SYSNO ASEP 0442999 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Simulation of mechanical behavior of NiTi shape memory alloys under complex loading: Model formulation and its performance in applications Author(s) Sedlák, Petr (UT-L) RID, ORCID
Frost, Miroslav (UT-L) RID, ORCID
Kruisová, Alena (UT-L) RID
Šittner, Petr (FZU-D) RID, ORCID
Heller, Luděk (FZU-D) RID, ORCIDNumber of authors 5 Source Title ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014, 1. - Newport : American Society of Mechanical Engineers, 2014 - ISBN 978-0-7918-4614-8 Pages v001t03a010-v001t03a010 Number of pages 7 s. Publication form Print - P Action ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014 Event date 08.09.2014-10.09.2014 VEvent location Newport Country US - United States Event type WRD Language eng - English Country US - United States Keywords shape memory alloys ; modeling ; helical spring Subject RIV BM - Solid Matter Physics ; Magnetism Subject RIV - cooperation Institute of Physics - Solid Matter Physics ; Magnetism R&D Projects GA13-13616S GA ČR - Czech Science Foundation (CSF) GP14-28306P GA ČR - Czech Science Foundation (CSF) GA14-15264S GA ČR - Czech Science Foundation (CSF) GAP107/12/0800 GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 ; FZU-D - RVO:68378271 UT WOS 000360948000045 EID SCOPUS 84918574799 DOI 10.1115/SMASIS2014-7465 Annotation A constitutive model tailored for non-proportionally loaded shape memory alloys exhibiting R-phase transition, transformation strain anisotropy, tension-compression asymmetry is employed to reveal and interpret relation between macroscopic response of a NiTi helical spring actuator and microscopic state within the shape memory material. Numerical simulations demonstrate that because of naturally non-proportional loading mode, phase and stress distributions within the cross-section of the wire may be rather complex and counterintuitive. 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 2016
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