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Titolo:
Multi-dimensional superelastic behavior of shape memory alloys via nonlinear finite element method
Autore:
Liew, KM; Kitipornchai, S; Ng, TY; Zou, GP;
Indirizzi:
Nanyang Technol Univ, Sch Mech & Prod Engn, Ctr Adv Numer Engn Simulat, Singapore 639798, Singapore Nanyang Technol Univ Singapore Singapore 639798gapore 639798, Singapore Nanyang Technol Univ, Sch Mech & Prod Engn, Nanyang Ctr Supercomp & Visualisat, Singapore 639798, Singapore Nanyang Technol Univ Singapore Singapore 639798 gapore 639798, Singapore City Univ Hong Kong, Dept Bldg & Construct, Kowloon, Hong Kong, Peoples R China City Univ Hong Kong Kowloon Hong Kong Peoples R China g, Peoples R China Inst High Performance Comp, Singapore 118261, Singapore Inst High Performance Comp Singapore Singapore 118261 118261, Singapore
Titolo Testata:
ENGINEERING STRUCTURES
fascicolo: 1, volume: 24, anno: 2002,
pagine: 51 - 57
SICI:
0141-0296(200201)24:1<51:MSBOSM>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONSTITUTIVE MODEL; PSEUDOELASTICITY;
Keywords:
multi-dimensional superelasticity; shape memory alloys; nonlinear finite elements;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Liew, KM Nanyang Technol Univ, Sch Mech & Prod Engn, Ctr Adv Numer Engn Simulat, Nanyang Ave, Singapore 639798, Singapore Nanyang Technol Univ Nanyang Ave Singapore Singapore 639798 pore
Citazione:
K.M. Liew et al., "Multi-dimensional superelastic behavior of shape memory alloys via nonlinear finite element method", ENG STRUCT, 24(1), 2002, pp. 51-57

Abstract

This paper presents a methodology for the simulation of multi-dimensional nonlinear thermomechanical behavior of shape memory alloys by the finite element method. The numerical multi-dimensional constitutive model is formulated by thermomechanics incorporated with the "yield" (transformation start stress in stress induced martensitic transformation) surface of shape memory alloys. In this formulation, the phase flow direction can be decided by using the "yield" stresses of a particular SMA in uni-axial tension and compression. The solution of the geometrically and physically nonlinear problemis achieved using Newton's iteration method. Numerical results for the uniaxial model, three and four-point bending tests and smart composite embedded with shape memory alloys show that the proposed procedure is an effectivecomputational tool for the simulation of a broad range of applications based on shape memory materials. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 26/01/20 alle ore 16:17:40