The effect of numerical solution procedure on the simulation of shape memory alloy actuators

Eric Williams, Yonas Tadesse, Shashank Priya, Dennis Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The numerical simulation of shape memory alloy actuators requires the solution of the coupled thermo-mechanical, phase transformation, and constitutive relationship equations. Simulation results are highly affected by parametric values as well as modeling equations. Specifically, the martensite fraction affects the simulation results of the actuator significantly for various input excitation as fraction of martensite is often modeled with a switching function. Depending on the assumed model this may cause changes in other properties of the system. Therefore in this study, we investigate the modeling of NiTi shape memory alloy based on the available phenomenological models and study the effects of integration step, numerical solver parameters and code formulation in Matlab/SIMULINK. To emphasis on the numerical solving procedure a simple spring biased SMA actuator configuration is chosen. Simulation results from multiple available models are provided and discussed.

Original languageEnglish (US)
Title of host publicationASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010
PublisherAmerican Society of Mechanical Engineers
Pages627-635
Number of pages9
ISBN (Print)9780791844151
DOIs
StatePublished - 2010
EventASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010 - Philadelphia, PA, United States
Duration: Sep 28 2010Oct 1 2010

Publication series

NameASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010
Volume1

Other

OtherASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010
CountryUnited States
CityPhiladelphia, PA
Period9/28/1010/1/10

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Biomaterials

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  • Cite this

    Williams, E., Tadesse, Y., Priya, S., & Hong, D. (2010). The effect of numerical solution procedure on the simulation of shape memory alloy actuators. In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010 (pp. 627-635). (ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010; Vol. 1). American Society of Mechanical Engineers. https://doi.org/10.1115/smasis2010-3834