Authors: J. C. Hilário, C. A. R. Andrade, M. T. Braz-César, A. S. Borges

The use of smart materials has become essential for the improvement of existing applications and the development of new technologies. Shape Memory Alloys (SMA) are part of this class of materials, where their unique characteristics allow their application as shock absorbers, sensors and actuators, for example. To apply these alloys, it is necessary simulate reliably their behavior, in order to reduce costs related to the prototype production and time to build them. The present research seeks the comparison between two solutions by different constitutive models for the same Nickel-Titanium alloy. One is using an algorithm implemented in Matlab® and the other with the result available in the literature obtained by commercial software Ansys® Workbench™. The results show the quantitative differences in the models and the phenomena that were taken into account during the simulation. Therefore, experimental tests are required for the validation of the mentioned phenomena, calibration and comparison of the models to identify the most representative model in the representation of the actual behavior of the alloy.

J. C. Hilário¹ | C. A. R. Andrade² | M. T. Braz-César³ | A. S. Borges⁴
1Aluno de Mestrado em Engenharia Industrial, ESTiG – Instituto Politécnico de Bragança
2Professor Adjunto, ESTiG – Instituto Politécnico de Bragança
3Professor Adjunto, ESTiG – Instituto Politécnico de Bragança
4Professor Associado, UTFPR – Universidade Tecnológica Federal do Paraná – Câmpus Cornélio Procópio