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Finite element analysis on the effect of martensitic transformation and plastic deformation on the stress concentration factor in a thin notched superelastic NiTi ribbon
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SYSNO ASEP 0563609 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Finite element analysis on the effect of martensitic transformation and plastic deformation on the stress concentration factor in a thin notched superelastic NiTi ribbon Author(s) Shayanfard, Pejman (FZU-D) ORCID
Šittner, Petr (FZU-D) RID, ORCID
Heller, Luděk (FZU-D) RID, ORCID
Šandera, P. (CZ)Number of authors 4 Article number 2051028 Source Title Functional Materials Letters - ISSN 1793-6047
Roč. 13, č. 5 (2020)Number of pages 8 s. Language eng - English Country SG - Singapore Keywords Stress concentration factor (K-tn) ; shape memory alloy ; superelastic ; martensitic transformation ; plastic deformation ; stress intensity factor (SIF) ; finite element ; NiTi ; notched ribbon Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA18-03834S GA ČR - Czech Science Foundation (CSF) GA16-20264S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000562046800014 EID SCOPUS 85087572908 DOI 10.1142/S1793604720510285 Annotation The severe nonlinear behavior caused by the martensitic transformation (MT) and subsequent plastic deformation (PD) of detwinned martensite leads to a complex local stress redistribution at the location of stress risers of superelastic shape memory alloy (SMA) components. Nevertheless, in the literature, the simple linear elastic fracture mechanics (LEFM) equations are widely used in the evaluation of the fracture response of superelastic components which has resulted in obvious conflicts between the conclusions regarding the effect of MT on the fracture parameters, i.e. stress intensity factor (SIF) and material toughness.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1142/S1793604720510285
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