Open Access
Article Number 06034
Number of page(s) 6
Section Applied Research and Applications: Testing and Modelling
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. Taillebot1, 2, C. Lexcellent1, 2, P. Malécot1, 2 and R. Laydi1, 2

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

Published online: 1 September 2009

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.

© Owned by the authors, published by EDP Sciences 2009