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Proceedings Paper

Is it necessary to model shape memory alloys within the scope of large strains?
Author(s): Daniel Christ; Stefanie Reese
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Paper Abstract

In this contribution we present a finite deformation material model for SMA which includes the effect of pseudoelasticity. The model is implemented into a FE code by using an innovative implicit time integration scheme. The final aim of the research work is to investigate whether FE simulations of SMA applications, e.g. NiTI-stents or medical foot staples, should be based on large strain formulations as the transformation strain during the phase transition can reach up to 10 %. If such a large strain model was not necessary the computational cost of the numerical investigations could be reduced significantly.

Paper Details

Date Published: 6 April 2006
PDF: 11 pages
Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61700X (6 April 2006); doi: 10.1117/12.658564
Show Author Affiliations
Daniel Christ, TU Braunschweig (Germany)
Stefanie Reese, TU Braunschweig (Germany)

Published in SPIE Proceedings Vol. 6170:
Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics
William D. Armstrong, Editor(s)

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