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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/61388998:_____/25:00642847 RIV/00216208:11320/25:10511565 RIV/68407700:21110/25:00390757 RIV/49777513:23520/25:43976394

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Shape Memory and Superelasticity

ISSN

2199-384X

e-ISSN

2199-3858

Svazek periodika

11

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

726-737

Kód UT WoS článku

001563779200001

EID výsledku v databázi Scopus

2-s2.0-105014894556