About: Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings

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About: Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S0749641912001027
Description	This work presents a thermomechanical model for polycrystalline NiTi-based shape memory alloys developed within the framework of continuum thermodynamics of irreversible processes. The model is capable of realistic simulations of several physical phenomena, involving transformation between austenite, R-phase and martensite and martensite reorientation, which may simultaneously occur under general thermomechanical loading. This is due to three key features of the model: a novel form of the dissipation function coupling martensite transformation and reorientation processes, inclusion of the material responses associated with the transformation between austenite and R-phase and implementation of the influence of material anisotropy. Based on a mathematically consistent formulation, the model was implemented into finite elements providing a numerical tool particularly useful for analysis of NiTi-based highly-textured components, which are of great industrial importance. To explore and demonstrate further features of the proposed model several numerical simulations were performed and compared with experimental results. This work presents a thermomechanical model for polycrystalline NiTi-based shape memory alloys developed within the framework of continuum thermodynamics of irreversible processes. The model is capable of realistic simulations of several physical phenomena, involving transformation between austenite, R-phase and martensite and martensite reorientation, which may simultaneously occur under general thermomechanical loading. This is due to three key features of the model: a novel form of the dissipation function coupling martensite transformation and reorientation processes, inclusion of the material responses associated with the transformation between austenite and R-phase and implementation of the influence of material anisotropy. Based on a mathematically consistent formulation, the model was implemented into finite elements providing a numerical tool particularly useful for analysis of NiTi-based highly-textured components, which are of great industrial importance. To explore and demonstrate further features of the proposed model several numerical simulations were performed and compared with experimental results. (en)
Title	Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings (en)
skos:prefLabel	Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings (en)
skos:notation	RIV/68378271:_____/12:00381632!RIV13-GA0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0088), P(GA101/09/0702), P(GA106/09/1573), P(GAP107/12/0800), P(GAP108/10/1296), S, Z(AV0Z10100521), Z(AV0Z20760514)
http://linked.open...iv/cisloPeriodika	DEC 2012
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šittner, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	174326
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00381632
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	shape memory alloys; constitutive modeling; R-phase; non-proportional loading; dissipation function (en)
http://linked.open.../riv/klicoveSlovo	R-phase dissipation function non-proportional loading shape memory alloys constitutive modeling
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[51E77C9863CF]
http://linked.open...i/riv/nazevZdroje	International Journal of Plasticity
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Fatigue of NiTiX High Temperature Shape Memory Alloy Actuators /FACT/ Centre of the New Technologies and Materials Mechanical properties of functional surface layers of submicron thicknesses Development and Characterization of Active Hybrid Textiles with Integrated Nanograin NiTi Micro Wires Optimization of the chemical composition, structural characteristics and mechanical properies of NiTi alloys for biomechanical applicatipons
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	39
http://linked.open...iv/tvurceVysledku	Benešová, Barbora Sedlák, Petr Šittner, Petr Frost, Miroslav Zineb, T.B.
http://linked.open...ain/vavai/riv/wos	000310928100009
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films Complex dynamical systems in thermodynamics, fluid and solid mechanics
issn	0749-6419
number of pages	20 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ijplas.2012.06.008
is http://linked.open...avai/riv/vysledek of	Thermomechanical model for NiTi-based shape memory alloys including R-phase and material anisotropy under multi-axial loadings

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