Experimental study and numerical simulation of short- and long-term shear stress relaxation behaviors of magnetorheological elastomers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F25%3A00013152" target="_blank" >RIV/46747885:24210/25:00013152 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s11043-024-09760-x" target="_blank" >https://link.springer.com/article/10.1007/s11043-024-09760-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11043-024-09760-x" target="_blank" >10.1007/s11043-024-09760-x</a>

Result language

angličtina

Original language name

Experimental study and numerical simulation of short- and long-term shear stress relaxation behaviors of magnetorheological elastomers

Original language description

An experimental study and numerical simulation of short-term and long-term shear stress relaxation behaviors of non-aligned and aligned magnetorheological elastomers (MREs) were investigated. The aligned MRE was created by aligning micro-size carbonyl iron particles in chains in silicon rubber using an external magnetic field during the curing process, while the non-aligned MRE was fabricated without applying a magnetic field. Effects of permanent magnetic fields on the shear stress relaxation of the non-aligned and aligned MREs were examined using the double-lap shear stress relaxation test with a short-term period of 1200 s and a long-term period of 1.08 x 106 s. The shear stress and relaxation modulus of the non-aligned and aligned MREs increased considerably with the rise of magnetic flux density to about 500 mT and then enhanced slightly above 500 mT. The shear stress and relaxation modulus of the aligned MRE are considerably higher than those of the non-aligned one. The shear stress relaxation of the non-aligned and aligned MREs was numerically simulated using the fractional derivative viscoelastic Kelvin–Voigt model. The model parameters were identified by fitting the relaxation modulus to the short-term measured data of the MREs. The shear stress estimated from the investigated model with fitted parameters was in excellent agreement with the short-term experimental data of the MREs measured under different magnetic fields. Besides, the short-term model-fitted parameters were used to predict the long-term shear stress relaxation of the non-aligned and aligned MREs. The largest difference between model-predicted and long-term measured results for the non-aligned and aligned MREs is less than 1%. Therefore, the studied model can be used to predict the long-term shear stress relaxation of the non-aligned and aligned MREs.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20500 - Materials engineering

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

2025

Confidentiality

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

Name of the periodical

Mechanics of Time-Dependent Materials

ISSN

1385-2000

e-ISSN

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Volume of the periodical

29

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

17

Pages from-to

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UT code for WoS article

001404975200001

EID of the result in the Scopus database

2-s2.0-85218194188