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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Mechanics of Time-Dependent Materials

ISSN

1385-2000

e-ISSN

—

Svazek periodika

29

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

17

Strana od-do

—

Kód UT WoS článku

001404975200001

EID výsledku v databázi Scopus

2-s2.0-85218194188