Number of the records: 1

Thermomechanical model for NiTi-based shape memory alloys covering macroscopic localization of martensitic transformation

SYSNO ASEP	0538049
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Thermomechanical model for NiTi-based shape memory alloys covering macroscopic localization of martensitic transformation
Author(s)	Frost, Miroslav (UT-L)_{RID, ORCID} Benešová, Barbora (UT-L)_{RID, ORCID} Seiner, Hanuš (UT-L)_{RID, ORCID} Kružík, Martin (UTIA-B)_{RID, ORCID} Sedlák, Petr (UT-L)_{RID, ORCID} Šittner, Petr (FZU-D)_{RID, ORCID}
Number of authors	6
Source Title	International Journal of Solids and Structures. - : Elsevier - ISSN 0020-7683 Roč. 221, č. 1 (2021), s. 117-129
Number of pages	13 s.
Publication form	Print - P
Language	eng - English
Country	GB - United Kingdom
Keywords	NiTi shape memory alloys ; constitutive modeling ; localization ; Mori-Tanaka method
Subject RIV	BA - General Mathematics
OECD category	Pure mathematics
Subject RIV - cooperation	Institute of Thermomechanics - Metallurgy Institute of Physics - Solid Matter Physics ; Magnetism
R&D Projects	GA18-03834S GA ČR - Czech Science Foundation (CSF)
Method of publishing	Limited access
Institutional support	UTIA-B - RVO:67985556 ; UT-L - RVO:61388998 ; FZU-D - RVO:68378271
UT WOS	000642497400010
EID SCOPUS	85091486492
DOI	10.1016/j.ijsolstr.2020.08.012
Annotation	The work presents a thermomechanical model for polycrystalline NiTi-based shape memory alloys developed within the framework of generalized standard solids, which is able to cover loading-mode dependent localization of the martensitic transformation. The key point is the introduction of a novel austenite–martensite interaction term responsible for the strain-softening of the material. Mathematical properties of the model are analyzed, and a suitable regularization and a time-discrete approximation for numerical implementation to the finite-element method are proposed. Model performance is illustrated on two numerical simulations: the tension of a superelastic NiTi ribbon and bending of a superelastic NiTi tube.
Workplace	Institute of Information Theory and Automation
Contact	Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201.
Year of Publishing	2022
Electronic address	https://doi.org/10.1016/j.ijsolstr.2020.08.012

Number of the records: 1