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A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers

Farzam Dadgar-Rad Orcid Logo, Mohammad Mehdi Mahjoub Orcid Logo, Mokarram Hossain Orcid Logo

Extreme Mechanics Letters, Volume: 72, Start page: 102233

Swansea University Author: Mokarram Hossain Orcid Logo

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DOI (Published version): 10.1016/j.eml.2024.102233

Abstract

Liquid crystal elastomers (LCEs) are a novel class of materials created by combining polymeric solids with stiff, rod-like molecules known as nematic mesogens. These materials exhibit large, reversible deformations under mechanical, thermal, and optical stimuli. In this work, we develop a nonlinear...

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Published in: Extreme Mechanics Letters
ISSN: 2352-4316
Published: Elsevier BV 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67862
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first_indexed 2024-10-01T08:36:07Z
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spelling v2 67862 2024-10-01 A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2024-10-01 ACEM Liquid crystal elastomers (LCEs) are a novel class of materials created by combining polymeric solids with stiff, rod-like molecules known as nematic mesogens. These materials exhibit large, reversible deformations under mechanical, thermal, and optical stimuli. In this work, we develop a nonlinear beam formulation for analyzing the finite elastic deformation of beam-like structures made of LCEs under photo-actuation. This formulation applies to ideal, non-ideal, isotropic genesis, and nematic genesis LCEs. We establish the variational form of the problem based on the principle of virtual work. To solve numerical examples, we also develop a nonlinear finite element formulation based on B-spline functions. Several numerical examples are presented to demonstrate the applicability of the proposed formulation. Journal Article Extreme Mechanics Letters 72 102233 Elsevier BV 2352-4316 1 11 2024 2024-11-01 10.1016/j.eml.2024.102233 http://dx.doi.org/10.1016/j.eml.2024.102233 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University 2024-10-01T09:36:29.9097787 2024-10-01T09:31:07.4265811 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Farzam Dadgar-Rad 0000-0003-1546-2446 1 Mohammad Mehdi Mahjoub 0009-0007-3662-0825 2 Mokarram Hossain 0000-0002-4616-1104 3
title A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
spellingShingle A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
Mokarram Hossain
title_short A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
title_full A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
title_fullStr A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
title_full_unstemmed A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
title_sort A hyperelastic beam model for the photo-induced response of nematic liquid crystal elastomers
author_id_str_mv 140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv 140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author Mokarram Hossain
author2 Farzam Dadgar-Rad
Mohammad Mehdi Mahjoub
Mokarram Hossain
format Journal article
container_title Extreme Mechanics Letters
container_volume 72
container_start_page 102233
publishDate 2024
institution Swansea University
issn 2352-4316
doi_str_mv 10.1016/j.eml.2024.102233
publisher Elsevier BV
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 - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
url http://dx.doi.org/10.1016/j.eml.2024.102233
document_store_str 0
active_str 0
description Liquid crystal elastomers (LCEs) are a novel class of materials created by combining polymeric solids with stiff, rod-like molecules known as nematic mesogens. These materials exhibit large, reversible deformations under mechanical, thermal, and optical stimuli. In this work, we develop a nonlinear beam formulation for analyzing the finite elastic deformation of beam-like structures made of LCEs under photo-actuation. This formulation applies to ideal, non-ideal, isotropic genesis, and nematic genesis LCEs. We establish the variational form of the problem based on the principle of virtual work. To solve numerical examples, we also develop a nonlinear finite element formulation based on B-spline functions. Several numerical examples are presented to demonstrate the applicability of the proposed formulation.
published_date 2024-11-01T09:36:29Z
_version_ 1811700031726551040
score 11.03502

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