Numerical tool for Shape Memory Alloys structures simulations including twinning eﬀects

Y. Chemisky; A. Duval; B. Piotrowski; T. Ben Zineb; E. Patoor

doi:10.1051/esomat/200908003

All issues

Year: 2009

10.1051/esomat/200908003

Abstract

Open Access

Issue		ESOMAT 2009 2009


Article Number		08003
Number of page(s)		8
Section		Roundrobin SMA Modelling
DOI		https://doi.org/10.1051/esomat/200908003
Published online		17 December 2010

ESOMAT 2009, 08003 (2009)

Numerical tool for Shape Memory Alloys structures simulations including twinning eﬀects

Y. Chemisky¹, A. Duval², B. Piotrowski², T. Ben Zineb² and E. Patoor¹^a

¹ LPMM, Metz University, Arts et Metiers ParisTech, CNRS, Ile du Saulcy 57045 Metz, France
² LEMTA , Nancy University, CNRS, 2 rue Jean Lamour, 54500 Vandoeuvre-les-Nancy, France

Corresponding author: ^a e-mail: etienne.patoor@ensam.eu

Abstract

According to the S3T-RoundRobin eﬀort, this paper presents the main results obtained using the SMA model developed by Chemisky et al. [6], from the calibration to the prediction results. This model is based on thermodynamics of the irrevesible processes. Three internal variables are used to model the macroscopic behavior of SMAs. Parameters identiﬁcation procedure requires only a limited set of experimental data. Comparison between modeling and experimental results are presented for the four data sets of this RoundRobin. Finite Element Analysis was performed to capture tension-torsion tests. Major discrepancies are related to strain localization eﬀects and R-phase transformation which are not included in the present model.