Numerical computation of stress relaxation of isotropic magnetorheological elastomer using fractional viscoelastic models

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F21%3A00009024" target="_blank" >RIV/46747885:24210/21:00009024 - isvavai.cz</a>
Result on the web
<a href="https://www.kme.zcu.cz/compmech/info_sborniky.php" target="_blank" >https://www.kme.zcu.cz/compmech/info_sborniky.php</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical computation of stress relaxation of isotropic magnetorheological elastomer using fractional viscoelastic models
Original language description
The paper presents numerical research on stress relaxation of isotropic magnetorheological elastomer (MRE) using fractional derivative viscoelastic models. The isotropic MRE has been fabricated by filling micro-sized carbonyl iron particles into silicone rubber. Effects of applied constant strain and magnetic field on short-term stress relaxation of isotropic MRE were carefully investigated by single- and multi-step relaxation shear tests using double-lap shear specimens. Three fractional viscoelastic models, namely, fractional Maxwell, fractional Kelvin–Voigt, and fractional Zener models were used to describe the stress relaxation response of isotropic MRE. Results showed that the fractional Kelvin-Voigt and Zener models were fitted well to the experimental data of isotropic MRE in both single- and multi-step stress relaxations. The calculated stress with long-term predictions for the isotropic MRE is in very good agreement with the measured one. Therefore, fractional Kelvin-Voigt and Zener models are applicable to predict the long-term stress relaxation of isotropic MRE.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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