Analysis of the phase transformation near the crack tip in Shape Memory Alloys

V. Taillebot; C. Lexcellent; P. Malécot; R. Laydi

doi:doi:10.1051/esomat/200906034

All issues

Year: 2009

10.1051/esomat/200906034

Abstract

Open Access

Issue		ESOMAT 2009 2009


Article Number		06034
Number of page(s)		6
Section		Applied Research and Applications: Testing and Modelling
DOI		https://doi.org/10.1051/esomat/200906034
Published online		01 September 2009

ESOMAT 2009, 06034 (2009)
DOI: 10.1051/esomat/200906034

Analysis of the phase transformation near the crack tip in Shape Memory Alloys

V. Taillebot^{1, 2}, C. Lexcellent^{1, 2}, P. Malécot^{1, 2} and R. Laydi^{1, 2}

¹ Institute Femto-St, 25000 Besancon, France
² Applied Mechanics Department, 24 rue de l’Epitaphe, 25000 Besancon, France

virginie.taillebot@univ-fcomte.fr

Published online: 1 September 2009

Abstract
A new analytical prediction of the phase transformation zone around the crack tip is proposed for shape memory alloys. The present analysis integrates the asymmetry between tension and compression in the yield surface of phase transformation around the crack tip. Shapes and sizes of the phase transformation zone are predicted for loading modes I, II and III. Furthermore, an experimental investigation for mode I loading fracture tests on edgecracked specimens of a nickel-titanium alloy is currently performing with a particular attention devoted on displacement and temperature fields evolution around the crack tip.