Constitutive Model of Shape Memory Alloy and its Finite Element Implementation for Medical Applications

DOI

10.2991/mcei-16.2016.206How to use a DOI?

Keywords

Shape memory alloys; Superelasticity; Constitutive law

Abstract

Shape memory alloy (SMA) have presented excellent behaviour for medical applications such as bio-compatible, high corrosion resistance, non-magnetic, and the unique physical properties, which replicate those of human tissues and bones. Based on the experimental results of super-elastic NiTi alloy, a three-dimensional super-elastic shape memory alloy (SMA) constitutive model for stress-induced martensite transformation is constructed in a framework of general inelasticity. In the proposed model, transformation hardening, reverse transformation of stress-induced martensite, elastic mismatch between the austenite and martensite phases, and temperature-dependence of transformation stress and elastic modulus of each phase are considered. The validity of such implementation was finally presented and compared with experimental data taken from the literature.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanping Wang
PY  - 2016/12
DA  - 2016/12
TI  - Constitutive Model of Shape Memory Alloy and its Finite Element Implementation for Medical Applications
BT  - Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
PB  - Atlantis Press
SP  - 985
EP  - 989
SN  - 1951-6851
UR  - https://doi.org/10.2991/mcei-16.2016.206
DO  - 10.2991/mcei-16.2016.206
ID  - Wang2016/12
ER  -