Field-frequency-dependent nonlinear rheology behavior of magnetorheological grease under large amplitude oscillatory shear

Wang, H; Chang, T; Li, Y; Li, S; Zhang, G; Wang, J

Field-frequency-dependent nonlinear rheology behavior of magnetorheological grease under large amplitude oscillatory shear

Wang, H Chang, T Li, Y

Li, S Zhang, G Wang, J

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Publisher:: Frontiers Media
Publication Type:: Journal Article
Citation:: Frontiers in Materials, 2021, 8, pp. 1-17
Issue Date:: 2021-03-17

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Field	Value	Language
dc.contributor.author	Wang, H
dc.contributor.author	Chang, T
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493
dc.contributor.author	Li, S
dc.contributor.author	Zhang, G
dc.contributor.author	Wang, J
dc.date.accessioned	2022-04-26T04:01:47Z
dc.date.available	2022-04-26T04:01:47Z
dc.date.issued	2021-03-17
dc.identifier.citation	Frontiers in Materials, 2021, 8, pp. 1-17
dc.identifier.issn	2296-8016
dc.identifier.issn	2296-8016
dc.identifier.uri	http://hdl.handle.net/10453/156602
dc.description.abstract	This article investigates the influence of frequency on the field-dependent non-linear rheology of magnetorheological (MR) grease under large amplitude oscillatory shear (LAOS). First, the LAOS tests with different driving frequencies were conducted on MR grease at four magnetic fields, and the storage and loss moduli under the frequency of 0.1, 0.5, 1, and 5 Hz were compared to obtain an overall understanding of the frequency-dependent viscoelastic behavior of MR grease. Based on this, the three-dimensional (3D) Lissajous curves and decomposed stress curves under two typical frequencies were depicted to provide the non-linear elastic and viscous behavior. Finally, the elastic and viscous measures containing higher harmonics from Fourier transform (FT)-Chebyshev analysis were used to quantitatively interpret the influence of the frequency on the non-linear rheology of MR grease, namely, strain stiffening (softening) and shear thickening (thinning), under LAOS with different magnetic fields. It was found that, under the application of the magnetic field, the onset of the non-linear behavior of MR grease was frequency-dependent. However, when the shear strain amplitude increased in the post-yield region, the non-linear rheology of MRG-70 was not affected by the oscillatory frequency.
dc.language	English
dc.publisher	Frontiers Media
dc.relation.ispartof	Frontiers in Materials
dc.relation.isbasedon	10.3389/fmats.2021.642049
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0912 Materials Engineering, 1007 Nanotechnology
dc.title	Field-frequency-dependent nonlinear rheology behavior of magnetorheological grease under large amplitude oscillatory shear
dc.type	Journal Article
utslib.citation.volume	8
utslib.for	0912 Materials Engineering
utslib.for	1007 Nanotechnology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access	*
pubs.consider-herdc	true
dc.date.updated	2022-04-26T04:01:39Z
pubs.publication-status	Published
pubs.volume	8

Abstract:

This article investigates the influence of frequency on the field-dependent non-linear rheology of magnetorheological (MR) grease under large amplitude oscillatory shear (LAOS). First, the LAOS tests with different driving frequencies were conducted on MR grease at four magnetic fields, and the storage and loss moduli under the frequency of 0.1, 0.5, 1, and 5 Hz were compared to obtain an overall understanding of the frequency-dependent viscoelastic behavior of MR grease. Based on this, the three-dimensional (3D) Lissajous curves and decomposed stress curves under two typical frequencies were depicted to provide the non-linear elastic and viscous behavior. Finally, the elastic and viscous measures containing higher harmonics from Fourier transform (FT)-Chebyshev analysis were used to quantitatively interpret the influence of the frequency on the non-linear rheology of MR grease, namely, strain stiffening (softening) and shear thickening (thinning), under LAOS with different magnetic fields. It was found that, under the application of the magnetic field, the onset of the non-linear behavior of MR grease was frequency-dependent. However, when the shear strain amplitude increased in the post-yield region, the non-linear rheology of MRG-70 was not affected by the oscillatory frequency.

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http://hdl.handle.net/10453/156602