An enhanced Brinson model with modified kinetics for martensite transformation
| Autor: | Jae Hyuk Lim, Young-Jin Kim, Ju-Won Jeong, Jung-Ju Lee |
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| Rok vydání: | 2017 |
| Předmět: |
Austenite
Materials science business.industry Mechanical Engineering Subroutine Diagram 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology SMA 020303 mechanical engineering & transports Transformation (function) 0203 mechanical engineering Mechanics of Materials Martensite Volume fraction von Mises yield criterion Applied mathematics 0210 nano-technology business |
| Zdroj: | Journal of Mechanical Science and Technology. 31:1157-1167 |
| ISSN: | 1976-3824 1738-494X |
| DOI: | 10.1007/s12206-017-0214-1 |
| Popis: | We propose an enhanced Brinson model with modified kinetics for martensite transformation. Two additional material constants are considered to follow the stress-temperature diagram above austenite start temperature (As) along with treatment to keep the continuity of the martensite volume fraction and the path dependency of the phase transformation. To demonstrate the performance of the proposed model, we implement this algorithm into ABAQUS user subroutine, then conduct several numerical simulations and compare their results with SMA wire experiments as well as those of three-dimensional SMA constitutive models. From the results, it turns out that the proposed model is as accurate as the three-dimensional models and shows better accuracy over original Brinson model in terms of recovery stress. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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