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Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy

Mokarram Hossain Orcid Logo

Continuum Mechanics and Thermodynamics

Swansea University Author: Mokarram Hossain Orcid Logo

Abstract

Even for a moderate actuation, a large electric voltage requirement hinders the application of electro-active polymers (EAPs) in many areas. Hence, among other mechanisms, the actuation enhancement in EAPs is performed via inclusions of high-dielectric-permittivity fillers in the matrix material in...

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Published in: Continuum Mechanics and Thermodynamics
ISSN: 0935-1175 1432-0959
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa48719
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spelling 2019-03-25T16:55:32.9874615 v2 48719 2019-02-06 Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2019-02-06 GENG Even for a moderate actuation, a large electric voltage requirement hinders the application of electro-active polymers (EAPs) in many areas. Hence, among other mechanisms, the actuation enhancement in EAPs is performed via inclusions of high-dielectric-permittivity fillers in the matrix material in the uncured stage. Moreover, to obtain an optimum advantage from the high-dielectric-permittivity fillers, an electric field can be applied during the curing process which helps the particles to align in a preferred direction. To be specific, recent experimental evidences show that these particles form a dispersed anisotropy rather than a perfect transverse anisotropic structure. The polymer curing process is a complex (visco-) elastic phenomenon where a liquid polymer gradually transforms into a solid macromolecular structure due to cross-linking of the initial solution of short polymer chains. This phase transition comes along with an increase in the material stiffness and a volume shrinkage. In this paper we present a phenomenologically inspired large strain framework for simulating the curing process of particle-filled electro-active polymers with a dispersion-type anisotropy that can work under the influence of an electro-mechanically coupled load. The application of the proposed approach is demonstrated with some numerical examples. These examples illustrate that the model can predict common features in particle-filled dispersed electro-active polymers undergoing curing processes in the presence of an electro-mechanically coupled load. Journal Article Continuum Mechanics and Thermodynamics 0935-1175 1432-0959 Electro-active polymers, Polymer curing, Electro-mechanically coupled problem, Dispersion anisotropy, Electro-elasticity, Curing shrinkage 31 12 2019 2019-12-31 10.1007/s00161-019-00747-5 COLLEGE NANME General Engineering COLLEGE CODE GENG Swansea University 2019-03-25T16:55:32.9874615 2019-02-06T11:53:43.3023923 College of Engineering Engineering Mokarram Hossain 0000-0002-4616-1104 1 0048719-06022019115618.pdf hossain2019.pdf 2019-02-06T11:56:18.5570000 Output 374264 application/pdf Accepted Manuscript true 2020-02-04T00:00:00.0000000 true eng
title Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
spellingShingle Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
Mokarram Hossain
title_short Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
title_full Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
title_fullStr Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
title_full_unstemmed Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
title_sort Modelling the curing process in particle-filled electro-active polymers with a dispersion anisotropy
author_id_str_mv 140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv 140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author Mokarram Hossain
author2 Mokarram Hossain
format Journal article
container_title Continuum Mechanics and Thermodynamics
publishDate 2019
institution Swansea University
issn 0935-1175
1432-0959
doi_str_mv 10.1007/s00161-019-00747-5
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
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description Even for a moderate actuation, a large electric voltage requirement hinders the application of electro-active polymers (EAPs) in many areas. Hence, among other mechanisms, the actuation enhancement in EAPs is performed via inclusions of high-dielectric-permittivity fillers in the matrix material in the uncured stage. Moreover, to obtain an optimum advantage from the high-dielectric-permittivity fillers, an electric field can be applied during the curing process which helps the particles to align in a preferred direction. To be specific, recent experimental evidences show that these particles form a dispersed anisotropy rather than a perfect transverse anisotropic structure. The polymer curing process is a complex (visco-) elastic phenomenon where a liquid polymer gradually transforms into a solid macromolecular structure due to cross-linking of the initial solution of short polymer chains. This phase transition comes along with an increase in the material stiffness and a volume shrinkage. In this paper we present a phenomenologically inspired large strain framework for simulating the curing process of particle-filled electro-active polymers with a dispersion-type anisotropy that can work under the influence of an electro-mechanically coupled load. The application of the proposed approach is demonstrated with some numerical examples. These examples illustrate that the model can predict common features in particle-filled dispersed electro-active polymers undergoing curing processes in the presence of an electro-mechanically coupled load.
published_date 2019-12-31T04:01:35Z
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score 10.896665