Numerical investigation of subtle feature of geometry effects on magneto-active elastomer cylindrical actuators

Numerical investigation of subtle feature of geometry effects on magneto-active elastomer cylindrical actuators | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Numerical investigation of subtle feature of geometry effects on magneto-active elastomer cylindrical actuators Sandeep Kumar, Ramesh Gupta Burela, Arpit Kumar Srivastava This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9201298/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 4 You are reading this latest preprint version Abstract Magneto-active elastomers (MAEs) are smart composite materials capable of undergoing large deformation when subjected to external magnetic fields, making them attractive for soft actuation and adaptive structures. In this study, a nonlinear finite element framework is developed to investigate the magnetically induced deformation behaviour of cylindrical MAE actuators subjected to radial magnetic loading. The magneto-mechanical response of the material is described using a continuum magneto-elastic constitutive model implemented through a user-defined material subroutine (VUMAT) within the ABAQUS/Explicit environment. The developed numerical model is used to examine the influence of the coupling parameters $\alpha$ and $\beta$ governing the magneto-mechanical interaction on the deformation and stress distribution of the actuator. Parametric studies reveal that increasing the magnetic coupling parameters significantly enhances circumferential deformation while producing localized stress concentrations near the inner boundary of the cylindrical structure. The results further demonstrate a nonlinear interaction between the coupling parameters that strongly influences actuator performance. The findings provide insight into the role of constitutive and geometric parameters in magnetically driven soft actuators and offer useful guidelines for the design and optimization of MAE-based cylindrical actuation systems. Physical sciences/Engineering Physical sciences/Materials science Physical sciences/Physics Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 30 Mar, 2026 Editor assigned by journal 26 Mar, 2026 Submission checks completed at journal 26 Mar, 2026 First submitted to journal 23 Mar, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9201298","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":610735816,"identity":"b409dc8e-e45a-4483-81cf-e4183ed30a50","order_by":0,"name":"Sandeep Kumar","email":"","orcid":"","institution":"Shiv Nadar University","correspondingAuthor":false,"prefix":"","firstName":"Sandeep","middleName":"","lastName":"Kumar","suffix":""},{"id":610735817,"identity":"7f8ca0a3-20a4-4a24-bcbd-72622679c07c","order_by":1,"name":"Ramesh Gupta Burela","email":"","orcid":"","institution":"National Institute of Technical Teachers Training and Research","correspondingAuthor":false,"prefix":"","firstName":"Ramesh","middleName":"Gupta","lastName":"Burela","suffix":""},{"id":610735818,"identity":"4a59381c-249e-471a-8110-cc3f0a1b9e75","order_by":2,"name":"Arpit Kumar Srivastava","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDElEQVRIie3Ov0rDQBzA8V8pXJc0rgdK7hV+RSiIfZhIIVmsOoUMEgpCpuAc6OArRHyBXzjQ5Zq5g4PgCxwUxMXihaQIkgZHh/sO9+cHH+4AbLZ/GtULay9es7GfSSehPTGH0z+R5pn2cLHck0Mdrdal1JBcu3z+vtW3MnxYZQg6kuAeLzsJr6588zF5lvJgyulZLopXhYO8ksBOqJOActAQQubQFIgFi4Jf4nCcGsL9TiEakhjystW0C0KRG/LVQ7AhQ2SjDHmZznzYGDLoIRPl+qRQ1iTi6/vZpNgEN2VWhc4h4qmx1HGcoLgbPen4gwuRzx/fPqNzT+TdBMCpv/drRu28h9hsNputr297MVx/y9Q72wAAAABJRU5ErkJggg==","orcid":"","institution":"Shiv Nadar University","correspondingAuthor":true,"prefix":"","firstName":"Arpit","middleName":"Kumar","lastName":"Srivastava","suffix":""}],"badges":[],"createdAt":"2026-03-23 13:40:01","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9201298/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9201298/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":105282302,"identity":"5399c5b0-dd34-49b3-aa84-0fbdf8b70b0a","added_by":"auto","created_at":"2026-03-24 10:27:48","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3128331,"visible":true,"origin":"","legend":"","description":"","filename":"ScientificReports.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9201298/v1_covered_560544a2-d7f8-4dbc-8c68-86c804bc621f.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Numerical investigation of subtle feature of geometry effects on magneto-active elastomer cylindrical actuators","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-9201298/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9201298/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Magneto-active elastomers (MAEs) are smart composite materials capable of undergoing large deformation when subjected to external magnetic fields, making them attractive for soft actuation and adaptive structures. In this study, a nonlinear finite element framework is developed to investigate the magnetically induced deformation behaviour of cylindrical MAE actuators subjected to radial magnetic loading. The magneto-mechanical response of the material is described using a continuum magneto-elastic constitutive model implemented through a user-defined material subroutine (VUMAT) within the ABAQUS/Explicit environment. The developed numerical model is used to examine the influence of the coupling parameters $\\alpha$ and $\\beta$ governing the magneto-mechanical interaction on the deformation and stress distribution of the actuator. Parametric studies reveal that increasing the magnetic coupling parameters significantly enhances circumferential deformation while producing localized stress concentrations near the inner boundary of the cylindrical structure. The results further demonstrate a nonlinear interaction between the coupling parameters that strongly influences actuator performance. The findings provide insight into the role of constitutive and geometric parameters in magnetically driven soft actuators and offer useful guidelines for the design and optimization of MAE-based cylindrical actuation systems.","manuscriptTitle":"Numerical investigation of subtle feature of geometry effects on magneto-active elastomer cylindrical actuators","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-03-24 10:24:59","doi":"10.21203/rs.3.rs-9201298/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2026-03-30T07:00:21+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-03-26T14:05:44+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-03-26T14:04:52+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2026-03-23T13:33:47+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"901fc285-279d-4d9e-8364-372763fc9adf","owner":[],"postedDate":"March 24th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[{"id":64981294,"name":"Physical sciences/Engineering"},{"id":64981295,"name":"Physical sciences/Materials science"},{"id":64981296,"name":"Physical sciences/Physics"}],"tags":[],"updatedAt":"2026-05-18T12:40:48+00:00","versionOfRecord":[],"versionCreatedAt":"2026-03-24 10:24:59","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9201298","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9201298","identity":"rs-9201298","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}