Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer

The paper presents experimental research and viscoelastic modeling of stress relaxation response of isotropic magnetorheological elastomer (MRE). The isotropic MRE has been prepared based on silicone matrix filled by magnetically micro-sized carbonyl iron particles. Effects of constant strain level...

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Autores principales:	Tran Huu Nam, Iva Petríková, Bohdana Marvalová
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Magnetorheological elastomer Viscoelastic modeling Stress relaxation behavior Relaxation test Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/e555a6fa6e4040f096de3cf4753099e7
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spelling	oai:doaj.org-article:e555a6fa6e4040f096de3cf4753099e72021-11-24T04:23:48ZExperimental and numerical research of stress relaxation behavior of magnetorheological elastomer0142-941810.1016/j.polymertesting.2020.106886https://doaj.org/article/e555a6fa6e4040f096de3cf4753099e72021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321152https://doaj.org/toc/0142-9418The paper presents experimental research and viscoelastic modeling of stress relaxation response of isotropic magnetorheological elastomer (MRE). The isotropic MRE has been prepared based on silicone matrix filled by magnetically micro-sized carbonyl iron particles. Effects of constant strain level and external magnetic field on the stress relaxation behavior of the MRE were carefully investigated by single- and multi-step relaxation tests in shear mode using double-lap shear specimens. Results revealed that the stress relaxation response of the MRE was dependent on the applied constant strain and external magnetic field. The relaxed stress and modulus of the MRE increased with increasing the constant strain level. In addition, the values of absolute stress and modulus in the relaxation periods enhanced with the rise of magnetic flux density. A four-parameter fractional derivative viscoelastic model was used to describe the stress relaxation behavior of the MRE. The studied model was fitted well to experimental data of the MRE in both single- and multi-step relaxation tests. The fitting of shear-stress relaxation modulus for the MRE is in a very good agreement with the experimental one. Effects of applied constant strain and magnetic field intensity on the fitted parameters were discussed. Moreover, the model can be applied to predict accurately the long-term relaxation behavior of the MRE.Tran Huu NamIva PetríkováBohdana MarvalováElsevierarticleMagnetorheological elastomerViscoelastic modelingStress relaxation behaviorRelaxation testPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106886- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Magnetorheological elastomer Viscoelastic modeling Stress relaxation behavior Relaxation test Polymers and polymer manufacture TP1080-1185
spellingShingle	Magnetorheological elastomer Viscoelastic modeling Stress relaxation behavior Relaxation test Polymers and polymer manufacture TP1080-1185 Tran Huu Nam Iva Petríková Bohdana Marvalová Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
description	The paper presents experimental research and viscoelastic modeling of stress relaxation response of isotropic magnetorheological elastomer (MRE). The isotropic MRE has been prepared based on silicone matrix filled by magnetically micro-sized carbonyl iron particles. Effects of constant strain level and external magnetic field on the stress relaxation behavior of the MRE were carefully investigated by single- and multi-step relaxation tests in shear mode using double-lap shear specimens. Results revealed that the stress relaxation response of the MRE was dependent on the applied constant strain and external magnetic field. The relaxed stress and modulus of the MRE increased with increasing the constant strain level. In addition, the values of absolute stress and modulus in the relaxation periods enhanced with the rise of magnetic flux density. A four-parameter fractional derivative viscoelastic model was used to describe the stress relaxation behavior of the MRE. The studied model was fitted well to experimental data of the MRE in both single- and multi-step relaxation tests. The fitting of shear-stress relaxation modulus for the MRE is in a very good agreement with the experimental one. Effects of applied constant strain and magnetic field intensity on the fitted parameters were discussed. Moreover, the model can be applied to predict accurately the long-term relaxation behavior of the MRE.
format	article
author	Tran Huu Nam Iva Petríková Bohdana Marvalová
author_facet	Tran Huu Nam Iva Petríková Bohdana Marvalová
author_sort	Tran Huu Nam
title	Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
title_short	Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
title_full	Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
title_fullStr	Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
title_full_unstemmed	Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
title_sort	experimental and numerical research of stress relaxation behavior of magnetorheological elastomer
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/e555a6fa6e4040f096de3cf4753099e7
work_keys_str_mv	AT tranhuunam experimentalandnumericalresearchofstressrelaxationbehaviorofmagnetorheologicalelastomer AT ivapetrikova experimentalandnumericalresearchofstressrelaxationbehaviorofmagnetorheologicalelastomer AT bohdanamarvalova experimentalandnumericalresearchofstressrelaxationbehaviorofmagnetorheologicalelastomer
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Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer

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