Compressions of magnetorheological fluids under instantaneous magnetic field and constant area

Abstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally...

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Autores principales:	Hongyun Wang, Cheng Bi, Yongju Zhang, Li Zhang, Fenfen Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5cddc161d9ed421d9771ac419b542fa3
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spelling	oai:doaj.org-article:5cddc161d9ed421d9771ac419b542fa32021-12-02T17:39:20ZCompressions of magnetorheological fluids under instantaneous magnetic field and constant area10.1038/s41598-021-88407-02045-2322https://doaj.org/article/5cddc161d9ed421d9771ac419b542fa32021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88407-0https://doaj.org/toc/2045-2322Abstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally studied under different magnetic fields, different initial gap distances and different compressive velocities. The nominal yield shear stresses of the compressed MR fluid under different influential factors have been calculated. The compressive stress increased in a power law as the applied magnetic field increased, while it decreased as the initial gap distance and the compressive velocity increased. With the increase of magnetic field, the difference between the nominal yield shear stress curves increased, and the exponents of the power law increased with the increase of the magnetic field strengths. A larger initial gap distance and a lower compressive velocity resulted in a higher nominal yield shear stress under the same instantaneous magnetic field. The achieved results of the nominal yield shear stress with magnetic field seemed to deviate from the prediction of dipole model, and the chain structure aggregation effect, the sealing effect and the friction effect by compression should be considered.Hongyun WangCheng BiYongju ZhangLi ZhangFenfen ZhouNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
description	Abstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally studied under different magnetic fields, different initial gap distances and different compressive velocities. The nominal yield shear stresses of the compressed MR fluid under different influential factors have been calculated. The compressive stress increased in a power law as the applied magnetic field increased, while it decreased as the initial gap distance and the compressive velocity increased. With the increase of magnetic field, the difference between the nominal yield shear stress curves increased, and the exponents of the power law increased with the increase of the magnetic field strengths. A larger initial gap distance and a lower compressive velocity resulted in a higher nominal yield shear stress under the same instantaneous magnetic field. The achieved results of the nominal yield shear stress with magnetic field seemed to deviate from the prediction of dipole model, and the chain structure aggregation effect, the sealing effect and the friction effect by compression should be considered.
format	article
author	Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou
author_facet	Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou
author_sort	Hongyun Wang
title	Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
title_short	Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
title_full	Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
title_fullStr	Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
title_full_unstemmed	Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
title_sort	compressions of magnetorheological fluids under instantaneous magnetic field and constant area
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5cddc161d9ed421d9771ac419b542fa3
work_keys_str_mv	AT hongyunwang compressionsofmagnetorheologicalfluidsunderinstantaneousmagneticfieldandconstantarea AT chengbi compressionsofmagnetorheologicalfluidsunderinstantaneousmagneticfieldandconstantarea AT yongjuzhang compressionsofmagnetorheologicalfluidsunderinstantaneousmagneticfieldandconstantarea AT lizhang compressionsofmagnetorheologicalfluidsunderinstantaneousmagneticfieldandconstantarea AT fenfenzhou compressionsofmagnetorheologicalfluidsunderinstantaneousmagneticfieldandconstantarea
_version_	1718379823402844160

Compressions of magnetorheological fluids under instantaneous magnetic field and constant area

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