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Published April 2009 | public
Journal Article

Large deformation of nitinol under shear dominant loading


Full-field quantitative strain maps of phase transformation and plasticity in Nitinol under large shear-dominated deformation are presented. To achieve a shear-dominated deformation mode with relatively uniform stresses and strains, a shear compression specimen (SCS) geometry was utilized. Shear deformation appears to impede the development of the strain localization during phase transformation that is seen in uniaxial testing. The shear-dominant deformation of Nitinol in the plastic regime exhibits low hardening and results in the development of significant strain inhomogeneity.

Additional Information

© 2008 Society for Experimental Mechanics. Received: 7 January 2008; accepted: 25 August 2008; published online: 3 October 2008. We gratefully acknowledge the support of the Army Research Office (W911NF-04-1-0156), the National Science Foundation (DMS-0311788) and the Powell foundation. We thank Correlated Solutions, Inc. for providing the DIC correlation software used in these experiments.

Additional details

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