Numerical Simulation of Deformation and Hole Position Shift in Extrusion Process of Four-Hole Propellant

Numerical Simulation of Deformation and Hole Position Shift in Extrusion Process of Four-Hole Propellant | 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 Simulation of Deformation and Hole Position Shift in Extrusion Process of Four-Hole Propellant Hao Liang, Baolu Song, Bo Xu, Yu Pang, Pin Hu, Zengjie Dai This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8742116/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 10 You are reading this latest preprint version Abstract Four-hole propellant were prepared by solvent extrusion. The polyflow module of ANSYS software was used to simulate the hole position deviation and shape change in the extrusion process of four-hole propellants. The extrusion quality of four-hole propellants was simulated and optimized. The results show that the deformation and the hole position deviation of the simulated four-hole propellants after extrusion are basically consistent with those obtained by the experiment, and the flow rate of the propellant decreases gradually from the center to the wall or the surface of the pins during extrusion. Properly reducing the volume flow rate of the inlet is beneficial to reduce the deformation and hole offset of the propellants. The simulation results show that the designed mold can greatly reduce the bad deformation in the extrusion process of four-hole propellant. Physical sciences/Engineering Physical sciences/Materials science Physical sciences/Physics Four-hole Extrusion Simulation Flow rate Deformation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 15 May, 2026 Reviews received at journal 13 May, 2026 Reviews received at journal 12 May, 2026 Reviewers agreed at journal 22 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviewers invited by journal 11 Feb, 2026 Editor assigned by journal 06 Feb, 2026 Editor invited by journal 05 Feb, 2026 Submission checks completed at journal 04 Feb, 2026 First submitted to journal 04 Feb, 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. 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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-8742116","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":589575274,"identity":"820cc340-d3a4-44b5-89a7-758133d37d3c","order_by":0,"name":"Hao Liang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA30lEQVRIiWNgGAWjYBACPmYgwdjAwMAPFQCx8QM2mBZJkNIDRGmBmWxwgGgt7MzPHn7dYSdnfPyM8ecPDDayGw4wP3uA32Fs5sayZ5KNzc7kmEkcYEgz3nCAzdyAgF/MpCXbmBO3HcgxAzrscOKGAzxsEvi1sH8DaqlP3Nz/xvjDAYb/xGjhMZP82AY0XCLHAOiwA0RpKZNmbDtuLHHjWZnEGYNk45mH2czwauHnP75N8mdbtRx/f/LmDxUVdrJ9x5uf4dUCAsw8cCYoqJgJqQcCxh9EKBoFo2AUjIIRDADuw0Skc5brPgAAAABJRU5ErkJggg==","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":true,"prefix":"","firstName":"Hao","middleName":"","lastName":"Liang","suffix":""},{"id":589575276,"identity":"d14d4dbb-fc72-4e58-9245-511a72cef068","order_by":1,"name":"Baolu Song","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Baolu","middleName":"","lastName":"Song","suffix":""},{"id":589575278,"identity":"7fca0b0a-b61e-4488-ade6-34b36f7d76aa","order_by":2,"name":"Bo Xu","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Bo","middleName":"","lastName":"Xu","suffix":""},{"id":589575280,"identity":"9db3107b-b69f-4f97-9892-0e1bc527b66b","order_by":3,"name":"Yu Pang","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Yu","middleName":"","lastName":"Pang","suffix":""},{"id":589575282,"identity":"33295740-3384-447e-b5e1-1792f452aec0","order_by":4,"name":"Pin Hu","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Pin","middleName":"","lastName":"Hu","suffix":""},{"id":589575283,"identity":"aabf945f-53bd-4712-b9c3-b4263fc4db17","order_by":5,"name":"Zengjie Dai","email":"","orcid":"","institution":"Anhui University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Zengjie","middleName":"","lastName":"Dai","suffix":""}],"badges":[],"createdAt":"2026-01-30 14:23:53","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8742116/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8742116/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":102738905,"identity":"9273e241-77b3-4266-8062-405f35fc5134","added_by":"auto","created_at":"2026-02-16 07:05:06","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":696187,"visible":true,"origin":"","legend":"","description":"","filename":"NumericalSimulationofDeformationandHolePositionShiftinExtrusionProcessofFourHolePropellant.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8742116/v1_covered_7956ee78-91e2-4a86-94a4-2605a695ce09.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eNumerical Simulation of Deformation and Hole Position Shift in Extrusion Process of Four-Hole Propellant\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"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":"Four-hole, Extrusion, Simulation, Flow rate, Deformation","lastPublishedDoi":"10.21203/rs.3.rs-8742116/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8742116/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eFour-hole propellant were prepared by solvent extrusion. 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