0642847 20260205125638.820251209235959.9 105014894556 001563779200001 10.1007/s40830-025-00562-9 12 s. E cav_un_epca*04495652199-384X114 (2025)726-737 shape memory alloys finite strain constitutive model logarithmic strain cav_un_auth*0459832 Moskovka Alexej UTIA-B Matematická teorie rozhodování Department of Decision Making Theory MTR MTR CZ Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0439612 Horák Martin UTIA-B Matematická teorie rozhodování Department of Decision Making Theory MTR MTR CZ Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0292941 Valdman Jan UTIA-B Matematická teorie rozhodování Department of Decision Making Theory MTR MTR Department of Decision Making Theory Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0359516 Knapek M. CZ cav_un_auth*0202943 Janeček M. CZ cav_un_auth*0107913 Sedlák Petr UT-L D 5 - Ultrazvukové metody D 5 - Ultrasonic Methods D5 – Ultrasonic Methods CZ Ústav termomechaniky AV ČR, v. v. i. cav_un_auth*0255186 Frost Miroslav UT-L D 5 - Ultrazvukové metody D 5 - Ultrasonic Methods D5 – Ultrasonic Methods CZ Ústav termomechaniky AV ČR, v. v. i. pdf https://link.springer.com/article/10.1007/s40830-025-00562-9 GA24-10366S GA ČR CZ cav_un_auth*0472839 EH22_008/0004591 GA MŠk CZ cav_un_auth*0465703 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. WOS JG 20000 20500 20501 2026 7 UTIA-B 10000 10100 10102 4 O 4o 20251210151230.9 RVO:67985556 RVO:61388998 https://hdl.handle.net/11104/0372784 S A https://arxiv.org/abs/2504.16629 MATERIALSSCIENCE.MULTIDISCIPLINARY 2.5 0.5 5.5 0.00082 0.526 929 34 0.736 41.05 2.23 294 Q2 2.300 32 Q3 36.1 0.43 Q3 36.1 2025 Soubory v repozitáři: 0642847_Moskovka_Frost_25(fin_strain_SMA).pdf 105014894556 SCOPUS PUBMED 001563779200001 WOS cav_un_epca*0449565 Shape Memory and Superelasticity Roč. 11 4 2025 726 737 2199-384X 2199-3858