Finite‑Strain Constitutive Model for Shape Memory Alloys Formulated in the Logarithmic Strain Space

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F25%3A00642847" target="_blank" >RIV/67985556:_____/25:00642847 - isvavai.cz</a>
Alternative codes found
RIV/61388998:_____/25:00642847 RIV/00216208:11320/25:10511565 RIV/68407700:21110/25:00390757 RIV/49777513:23520/25:43976394
Result on the web
<a href="https://link.springer.com/article/10.1007/s40830-025-00562-9" target="_blank" >https://link.springer.com/article/10.1007/s40830-025-00562-9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s40830-025-00562-9" target="_blank" >10.1007/s40830-025-00562-9</a>

Result language
angličtina
Original language name
Finite‑Strain Constitutive Model for Shape Memory Alloys Formulated in the Logarithmic Strain Space
Original language description
This work presents a finite-strain version of an established three-dimensional constitutive model for polycrystalline shape memory alloys (SMA) that is able to account for the large deformations and rotations that SMA components may undergo. The model is constructed by applying the logarithmic strain space approach to the original small-strain model, which was formulated within the Generalized Standard Materials framework and features a refined dissipation (rate) function. Additionally, the free energy function is augmented to be more versatile in capturing the transformation kinetics. The model is implemented into finite element software. To demonstrate the model performance and validate the implementation, material parameters are fitted to the experimental data of two SMA, and two computational simulations of SMA components are conducted. The applied approach is highly flexible from the perspective of the future incorporation of other phenomena, e.g., irreversibility associated with plasticity, into the model.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10102 - Applied mathematics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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