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Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage

Mokarram Hossain Orcid Logo, Prashant Saxena

International Journal of Non-Linear Mechanics, Volume: 74, Issue: -, Pages: 108 - 121

Swansea University Author: Mokarram Hossain Orcid Logo

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DOI (Published version): 10.1016/j.ijnonlinmec.2015.04.008

Abstract

This paper deals with a phenomenologically motivated magneto-viscoelastic coupled finite strain framework for simulating the curing process of polymers under the application of a coupled magneto-mechanical load. Magneto-sensitive polymers are prepared by mixing micron-sized ferromagnetic particles i...

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Published in: International Journal of Non-Linear Mechanics
Published: Elsevier-London Elsevier 2015
Online Access: https://www.sciencedirect.com/science/article/pii/S0020746215000797#!
URI: https://cronfa.swan.ac.uk/Record/cronfa39635
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spelling 2018-04-30T10:44:16.0695934 v2 39635 2018-04-30 Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2018-04-30 GENG This paper deals with a phenomenologically motivated magneto-viscoelastic coupled finite strain framework for simulating the curing process of polymers under the application of a coupled magneto-mechanical load. Magneto-sensitive polymers are prepared by mixing micron-sized ferromagnetic particles in uncured polymers. Application of a magnetic field during the curing process causes the particles to align and form chain-like structures lending an overall anisotropy to the material. The polymer curing is a viscoelastic complex process where a transformation from fluid to solid occurs in the course of time. During curing, volume shrinkage also occurs due to the packing of polymer chains by chemical reactions. Such reactions impart a continuous change of magneto-mechanical properties that can be modelled by an appropriate constitutive relation where the temporal evolution of material parameters is considered. To model the shrinkage during curing, a magnetic-induction-dependent approach is proposed which is based on a multiplicative decomposition of the deformation gradient into a mechanical and a magnetic-induction-dependent volume shrinkage part. The proposed model obeys the relevant laws of thermodynamics. Numerical examples, based on a generalised Mooney–Rivlin energy function, are presented to demonstrate the model capacity in the case of a magneto-viscoelastically coupled load. Journal Article International Journal of Non-Linear Mechanics 74 - 108 121 Elsevier Elsevier-London Magneto-sensitive polymers, Polymer curing, Magneto-mechanical coupled problem, Magneto-viscoelasticity, Curing shrinkage 1 9 2015 2015-09-01 10.1016/j.ijnonlinmec.2015.04.008 https://www.sciencedirect.com/science/article/pii/S0020746215000797#! COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University 2018-04-30T10:44:16.0695934 2018-04-30T10:44:16.0851889 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering Mokarram Hossain 0000-0002-4616-1104 1 Prashant Saxena 2
title Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
spellingShingle Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
Mokarram Hossain
title_short Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
title_full Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
title_fullStr Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
title_full_unstemmed Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
title_sort Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
author_id_str_mv 140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv 140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author Mokarram Hossain
author2 Mokarram Hossain
Prashant Saxena
format Journal article
container_title International Journal of Non-Linear Mechanics
container_volume 74
container_issue -
container_start_page 108
publishDate 2015
institution Swansea University
doi_str_mv 10.1016/j.ijnonlinmec.2015.04.008
publisher Elsevier
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - General Engineering
url https://www.sciencedirect.com/science/article/pii/S0020746215000797#!
document_store_str 0
active_str 0
description This paper deals with a phenomenologically motivated magneto-viscoelastic coupled finite strain framework for simulating the curing process of polymers under the application of a coupled magneto-mechanical load. Magneto-sensitive polymers are prepared by mixing micron-sized ferromagnetic particles in uncured polymers. Application of a magnetic field during the curing process causes the particles to align and form chain-like structures lending an overall anisotropy to the material. The polymer curing is a viscoelastic complex process where a transformation from fluid to solid occurs in the course of time. During curing, volume shrinkage also occurs due to the packing of polymer chains by chemical reactions. Such reactions impart a continuous change of magneto-mechanical properties that can be modelled by an appropriate constitutive relation where the temporal evolution of material parameters is considered. To model the shrinkage during curing, a magnetic-induction-dependent approach is proposed which is based on a multiplicative decomposition of the deformation gradient into a mechanical and a magnetic-induction-dependent volume shrinkage part. The proposed model obeys the relevant laws of thermodynamics. Numerical examples, based on a generalised Mooney–Rivlin energy function, are presented to demonstrate the model capacity in the case of a magneto-viscoelastically coupled load.
published_date 2015-09-01T03:50:22Z
_version_ 1763752461478133760
score 11.037056

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