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Evolution of Martensitic Transformation in Loaded NiTi Components: Comparison of Synchrotron XRD Tomography Data with FEM Simulations
- 1.0486361 - ÚT 2018 RIV ES eng C - Conference Paper (international conference)
Sedlák, Petr - Frost, Miroslav - Heller, Luděk - Kadeřávek, Lukáš - Šittner, Petr
Evolution of Martensitic Transformation in Loaded NiTi Components: Comparison of Synchrotron XRD Tomography Data with FEM Simulations.
Proceedings of SMART 2017. Barcelona: International Center for Numerical Methods in Engineering, 2017 - (Güemes, A.; Rodellar, J.; Leng, J.; Benjeddou, A.), s. 1491-1501. ISBN 978-84-946909-3-8.
[ECCOMAS Thematic Conference on Smart Structures and Materials /8./. Madrid (ES), 05.06.2017-08.06.2017]
R&D Projects: GA ČR GB14-36566G; GA ČR GA16-20264S
Institutional support: RVO:61388998 ; RVO:68378271
Keywords : NiTi shape memory alloys * X-ray diffraction tomography * numerical simulations
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
http://congress.cimne.com/smart2017/frontal/doc/Ebook_SMART2017.pdf
We have studied spatial distribution of martensite phase in a segment of a stretched snake spring, which was shape set from a polycrystalline NiTi shape memory alloy. Synchrotron X-ray diffraction was performed and obtained data were processed via a simple fitting procedure. A finite element simulation of the stretching was conducted utilizing a NiTi-tailored constitutive model with an internal scalar variable representing the volume fraction of martensite.
Permanent Link: http://hdl.handle.net/11104/0281765
Number of the records: 1