{"paper_id":"031dc3e4-6d58-486d-8b10-34dfca3ac598","body_text":"Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading | 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 Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading Fengfeng Wang, Lei Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4273528/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 06 Oct, 2024 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract Mortars will remain critical in future land wars due to their flexibility and versatility. When mortars are fired continuously, the contact soil is gradually compacted by the mortar base plate, and dynamic research into this process is the basis for innovative mortar design. However, the discontinuity and nonlinearity of soil contact absolutely necessitate the constitutive relationship of soil contact, which is difficult to study. Therefore, this study conducted experimental research and theoretical derivation to establish an accurate dynamic model of the mortar system. First, based on the nonlinear elastic-plastic theory and the stress-strain relationship of soil under cyclic loading, a theoretical analysis method for the constitutive relationship of contact soil under continuous loading was proposed. Second, an experimental and testing system was designed to simulate launch loads, and the stress-strain response of soil under continuous impact loads was obtained experimentally. Subsequently, based on theoretical analysis and experimental data, the stress-strain relationship during the gradual compaction of soil was established using the least squares method. Finally, a constitutive relationship model of the contact soil in the mortar system was established in ABAQUS using the VUMAT subroutine interface, and the calculated results were compared and analyzed with traditional calculation results. The results indicated that studying the constitutive relationship of mortar in contact with soil during continuous firing using this method can improve the accuracy of dynamically modeling mortar systems. Moreover, this study has practical value in the engineering design of mortar systems. Physical sciences/Engineering/Mechanical engineering Physical sciences/Mathematics and computing Continuous loading Soil Constitutive relationship Mortar base plate Experiment Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 06 Oct, 2024 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 26 Jun, 2024 Reviews received at journal 22 Jun, 2024 Reviews received at journal 22 Jun, 2024 Reviewers agreed at journal 06 Jun, 2024 Reviewers agreed at journal 06 Jun, 2024 Reviewers invited by journal 06 Jun, 2024 Editor assigned by journal 06 Jun, 2024 Editor invited by journal 24 Apr, 2024 Submission checks completed at journal 23 Apr, 2024 First submitted to journal 16 Apr, 2024 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-4273528\",\"acceptedTermsAndConditions\":true,\"allowDirectSubmit\":false,\"archivedVersions\":[],\"articleType\":\"Article\",\"associatedPublications\":[],\"authors\":[{\"id\":295114912,\"identity\":\"2602ada8-e2bc-4cfb-b358-986ef52fbc70\",\"order_by\":0,\"name\":\"Fengfeng Wang\",\"email\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABB0lEQVRIiWNgGAWjYLCCCiBmbwAzmeXY2NsPENZyBoh5IOqYjfl4ziSQpiVxnoSDAV7VBsfPHn5xoOKOXQ977+HXPDXW6W0SDAkMPyq24dZyJi/N4sCZZ8k9POfSLGccS89tk248wNhz5jZOLWYHcsyMP7YdTraXyDEz+NhwOLdN5kACM2MbHi3n35gZHPx3OJlHHshIbDicziaRYIBfy40c4wcHGw7b8UjwGD8A2pJAUIv9jTdmDAeOHU7g4ckxYwT6xbANGMgH8flFsj/H+MOBmsP2POxnjD8DQ0xevr394IMfFbi1AAGbBJBIbIAywOAAPvVAwPwB5EAYYxSMglEwCkYBBgAAVA9gV0QY2eEAAAAASUVORK5CYII=\",\"orcid\":\"\",\"institution\":\"Jinling Institute of Technology\",\"correspondingAuthor\":true,\"prefix\":\"\",\"firstName\":\"Fengfeng\",\"middleName\":\"\",\"lastName\":\"Wang\",\"suffix\":\"\"},{\"id\":295114914,\"identity\":\"0de11c31-3bcf-4452-b0ab-4b15e9366e13\",\"order_by\":1,\"name\":\"Lei Li\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Nanjing University of Science and Technology\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Lei\",\"middleName\":\"\",\"lastName\":\"Li\",\"suffix\":\"\"}],\"badges\":[],\"createdAt\":\"2024-04-16 06:03:44\",\"currentVersionCode\":1,\"declarations\":\"\",\"doi\":\"10.21203/rs.3.rs-4273528/v1\",\"doiUrl\":\"https://doi.org/10.21203/rs.3.rs-4273528/v1\",\"draftVersion\":[],\"editorialEvents\":[{\"content\":\"https://doi.org/10.1038/s41598-024-74169-y\",\"type\":\"published\",\"date\":\"2024-10-06T15:57:54+00:00\"}],\"editorialNote\":\"\",\"failedWorkflow\":false,\"files\":[{\"id\":66096893,\"identity\":\"793726e9-2b8c-49b1-8ae7-1aded8eb0046\",\"added_by\":\"auto\",\"created_at\":\"2024-10-07 16:11:22\",\"extension\":\"pdf\",\"order_by\":1,\"title\":\"\",\"display\":\"\",\"copyAsset\":false,\"role\":\"manuscript-pdf\",\"size\":2794488,\"visible\":true,\"origin\":\"\",\"legend\":\"\",\"description\":\"\",\"filename\":\"ConstitutiveRelationshipofSoilincontactwithMortarunderContinuousLoading0423.pdf\",\"url\":\"https://assets-eu.researchsquare.com/files/rs-4273528/v1_covered_3b0b66fe-0c9e-476c-8e84-cf0c8e4d6a54.pdf\"}],\"financialInterests\":\"No competing interests reported.\",\"formattedTitle\":\"Constitutive Relationship of Soil in Contact with Mortar under Continuous Loading\",\"fulltext\":[],\"fulltextSource\":\"\",\"fullText\":\"\",\"funders\":[],\"hasAdminPriorityOnWorkflow\":false,\"hasManuscriptDocX\":false,\"hasOptedInToPreprint\":true,\"hasPassedJournalQc\":\"\",\"hasAnyPriority\":false,\"hideJournal\":false,\"highlight\":\"\",\"institution\":\"\",\"isAcceptedByJournal\":true,\"isAuthorSuppliedPdf\":true,\"isDeskRejected\":\"\",\"isHiddenFromSearch\":false,\"isInQc\":false,\"isInWorkflow\":false,\"isPdf\":true,\"isPdfUpToDate\":true,\"isWithdrawnOrRetracted\":false,\"journal\":{\"display\":true,\"email\":\"info@researchsquare.com\",\"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\":\"Continuous loading, Soil, Constitutive relationship, Mortar base plate, Experiment\",\"lastPublishedDoi\":\"10.21203/rs.3.rs-4273528/v1\",\"lastPublishedDoiUrl\":\"https://doi.org/10.21203/rs.3.rs-4273528/v1\",\"license\":{\"name\":\"CC BY 4.0\",\"url\":\"https://creativecommons.org/licenses/by/4.0/\"},\"manuscriptAbstract\":\"Mortars will remain critical in future land wars due to their flexibility and versatility. When mortars are fired continuously, the contact soil is gradually compacted by the mortar base plate, and dynamic research into this process is the basis for innovative mortar design. However, the discontinuity and nonlinearity of soil contact absolutely necessitate the constitutive relationship of soil contact, which is difficult to study. Therefore, this study conducted experimental research and theoretical derivation to establish an accurate dynamic model of the mortar system. First, based on the nonlinear elastic-plastic theory and the stress-strain relationship of soil under cyclic loading, a theoretical analysis method for the constitutive relationship of contact soil under continuous loading was proposed. Second, an experimental and testing system was designed to simulate launch loads, and the stress-strain response of soil under continuous impact loads was obtained experimentally. Subsequently, based on theoretical analysis and experimental data, the stress-strain relationship during the gradual compaction of soil was established using the least squares method. Finally, a constitutive relationship model of the contact soil in the mortar system was established in ABAQUS using the VUMAT subroutine interface, and the calculated results were compared and analyzed with traditional calculation results. The results indicated that studying the constitutive relationship of mortar in contact with soil during continuous firing using this method can improve the accuracy of dynamically modeling mortar systems. 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