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Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect

Daniel Garcia-Gonzalez, Mokarram Hossain Orcid Logo

Extreme Mechanics Letters, Volume: 48, Start page: 101382

Swansea University Author: Mokarram Hossain Orcid Logo

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Abstract

Hard-magnetic soft materials are a class of magneto-active polymers (MAPs) where the fillers are composed of hard-magnetic (magnetised) particles. These materials present complex magneto-mechanical couplings, which require the development of modelling frameworks in understanding their responses at t...

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Published in: Extreme Mechanics Letters
ISSN: 2352-4316
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa57051
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spelling 2021-06-28T16:12:49.3191810 v2 57051 2021-06-08 Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2021-06-08 GENG Hard-magnetic soft materials are a class of magneto-active polymers (MAPs) where the fillers are composed of hard-magnetic (magnetised) particles. These materials present complex magneto-mechanical couplings, which require the development of modelling frameworks in understanding their responses at the very beginning of conceptualisation and design. Most of the current constitutive approaches available in the literature for hard-magnetic MAPs do not consider dipole–dipole interactions of the embedded particles. However, such interactions among the magnetised particles generate internal forces within the composite that need to be balanced by mechanical stress from the polymeric matrix networks. This fact may imply an initial stretch of the polymeric network and suggests that such dipole–dipole interactions may be important during the MAP deformation process. To address these crucial points, in this contribution, we propose a novel constitutive model relating microstructural characteristics of hard-magnetic MAPs. The model accounts for polymeric network pre-stretch, dipole–dipole interactions, Zeeman effect as well as viscous mechanisms which are formulated on the finite deformation theory. The results obtained her ein highlight the importance of accounting for the dipole–dipole interactions and the polymeric network pre-stretch to understand the complex magneto-mechanically coupled behaviour of hard-magnetic MAPs. Journal Article Extreme Mechanics Letters 48 101382 Elsevier BV 2352-4316 Magneto-active polymers (MAP), Magneto-mechanics, Magnetic pre-stretch, Hard-magnetics, Microstructural model, Finite deformations 1 10 2021 2021-10-01 10.1016/j.eml.2021.101382 COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University 2021-06-28T16:12:49.3191810 2021-06-08T09:42:35.3848259 College of Engineering Engineering Daniel Garcia-Gonzalez 1 Mokarram Hossain 0000-0002-4616-1104 2 57051__20075__4126f4cc1ba342d09b8494c5ff82753f.pdf 57051.pdf 2021-06-08T09:44:15.6321487 Output 951149 application/pdf Accepted Manuscript true 2022-06-07T00:00:00.0000000 ©2021 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
spellingShingle Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
Mokarram Hossain
title_short Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
title_full Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
title_fullStr Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
title_full_unstemmed Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
title_sort Microstructural modelling of hard-magnetic soft materials: Dipole–dipole interactions versus Zeeman effect
author_id_str_mv 140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv 140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author Mokarram Hossain
author2 Daniel Garcia-Gonzalez
Mokarram Hossain
format Journal article
container_title Extreme Mechanics Letters
container_volume 48
container_start_page 101382
publishDate 2021
institution Swansea University
issn 2352-4316
doi_str_mv 10.1016/j.eml.2021.101382
publisher Elsevier BV
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description Hard-magnetic soft materials are a class of magneto-active polymers (MAPs) where the fillers are composed of hard-magnetic (magnetised) particles. These materials present complex magneto-mechanical couplings, which require the development of modelling frameworks in understanding their responses at the very beginning of conceptualisation and design. Most of the current constitutive approaches available in the literature for hard-magnetic MAPs do not consider dipole–dipole interactions of the embedded particles. However, such interactions among the magnetised particles generate internal forces within the composite that need to be balanced by mechanical stress from the polymeric matrix networks. This fact may imply an initial stretch of the polymeric network and suggests that such dipole–dipole interactions may be important during the MAP deformation process. To address these crucial points, in this contribution, we propose a novel constitutive model relating microstructural characteristics of hard-magnetic MAPs. The model accounts for polymeric network pre-stretch, dipole–dipole interactions, Zeeman effect as well as viscous mechanisms which are formulated on the finite deformation theory. The results obtained her ein highlight the importance of accounting for the dipole–dipole interactions and the polymeric network pre-stretch to understand the complex magneto-mechanically coupled behaviour of hard-magnetic MAPs.
published_date 2021-10-01T04:12:58Z
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