Response of Bolted and Hybrid Bonded-Fastened Single-lap Joints in Composite Structures Subjected to Dynamic Loading

Response of Bolted and Hybrid Bonded-Fastened Single-lap Joints in Composite Structures Subjected to Dynamic 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 Research Article Response of Bolted and Hybrid Bonded-Fastened Single-lap Joints in Composite Structures Subjected to Dynamic Loading Sijun Xiong, Shizhao Ming, Qianqiang He, Yongxin Shi, Yinxuan Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9484668/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Bolted and hybrid bonded-fastened joints are widely adopted joining strategies for fiber-reinforced composites in complex composite structures, and they have been extensively investigated. However, those studies mainly focus on failure mechanisms under quasi-static loading, which cannot represent real engineering scenarios. Therefore, in order to reveal the differences in failure behaviors of joints under dynamic loads, this paper investigates the failure mechanisms of bolted and hybrid bonded-fastened single-lap carbon fiber-reinforced composite joints under quasi-static and dynamic loading ranging from 1 m/s to 4 m/s by combining experimental and numerical approaches. The sensitivity of the response to design factors is examined, including bolt diameter, bolt number, and the addition of adhesive bonding. Finite element modeling using a user-defined subroutine VUMAT was conducted to understand the failure mechanisms of these bolted joints under different loading conditions. The results indicate that bolt diameter is critical to the failure mode of the bolted joints. An increase in loading speed changes the failure process from sequential bolt fracture to a sudden, simultaneous failure of both fasteners. Besides, under dynamic loading, the bonding layer and bolts are co-loaded, resulting in a significant improvement in energy absorption for the multi-bolt joint, which has not been observed under quasi-static loading. These findings underscore the importance of designing joints in modern composite structures subjected to dynamic loading. Bolt Hybrid Bonded-Fastened Joint dynamic Composite Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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-9484668","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":639874158,"identity":"7d2a7f58-8aa4-4e11-9435-c2b5547bb32f","order_by":0,"name":"Sijun Xiong","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA50lEQVRIiWNgGAWjYDACZoYEICkBYh0AEhYMDDzEa2EDMhIkiNCCADwGxGmRb2d4Jl3YZiFnzr/m42PeHxJy/DwHGD98zMGtxeAwQ5r0jDMSxpYz3m425kmQMJbsbWCWnLkNjxZmoBaeConEDTfObpMGaknccJ6BjZkXjxb5ZpAWA5CWM8+I08JwGGbL+R42iJazDfi1AP2SbM0D9IvBDTZjwzlpQL/0HGzG6xf5/jOJt3nb6uQMzh9++OCNjQ0wxJIPfviIz2EMPAkQWiIBJsLYgE89ELAfgND8BwgoHAWjYBSMghELAEGdR9MRlLDzAAAAAElFTkSuQmCC","orcid":"","institution":"AVIC Shenyang Aircraft Design and Research Institute","correspondingAuthor":true,"prefix":"","firstName":"Sijun","middleName":"","lastName":"Xiong","suffix":""},{"id":639874162,"identity":"f04e7458-10be-4435-b97a-3abceacd01e6","order_by":1,"name":"Shizhao Ming","email":"","orcid":"","institution":"China Academy of Launch Vehicle Technology","correspondingAuthor":false,"prefix":"","firstName":"Shizhao","middleName":"","lastName":"Ming","suffix":""},{"id":639874167,"identity":"dad89818-796c-44f5-a940-ba22dcdd0459","order_by":2,"name":"Qianqiang He","email":"","orcid":"","institution":"AVIC Shenyang Aircraft Design and Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Qianqiang","middleName":"","lastName":"He","suffix":""},{"id":639874171,"identity":"3ca0dd38-fab2-43be-a8f5-20224d4b3436","order_by":3,"name":"Yongxin Shi","email":"","orcid":"","institution":"AVIC Shenyang Aircraft Design and Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Yongxin","middleName":"","lastName":"Shi","suffix":""},{"id":639874172,"identity":"16be464a-4eb4-4760-9d80-6076ca506629","order_by":4,"name":"Yinxuan Zhang","email":"","orcid":"","institution":"AVIC Shenyang Aircraft Design and Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Yinxuan","middleName":"","lastName":"Zhang","suffix":""}],"badges":[],"createdAt":"2026-04-21 13:08:26","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9484668/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9484668/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":109535262,"identity":"d45e58e9-39a3-4d01-94a9-b379d301862b","added_by":"auto","created_at":"2026-05-19 08:56:36","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1309583,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptunmarked.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9484668/v1_covered_73e5a6dc-7678-4ebb-9c5e-ebc6df0320e7.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Response of Bolted and Hybrid Bonded-Fastened Single-lap Joints in Composite Structures Subjected to Dynamic Loading","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"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":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Bolt, Hybrid Bonded-Fastened Joint, dynamic, Composite","lastPublishedDoi":"10.21203/rs.3.rs-9484668/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9484668/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eBolted and hybrid bonded-fastened joints are widely adopted joining strategies for fiber-reinforced composites in complex composite structures, and they have been extensively investigated. However, those studies mainly focus on failure mechanisms under quasi-static loading, which cannot represent real engineering scenarios. Therefore, in order to reveal the differences in failure behaviors of joints under dynamic loads, this paper investigates the failure mechanisms of bolted and hybrid bonded-fastened single-lap carbon fiber-reinforced composite joints under quasi-static and dynamic loading ranging from 1 m/s to 4 m/s by combining experimental and numerical approaches. The sensitivity of the response to design factors is examined, including bolt diameter, bolt number, and the addition of adhesive bonding. Finite element modeling using a user-defined subroutine VUMAT was conducted to understand the failure mechanisms of these bolted joints under different loading conditions. The results indicate that bolt diameter is critical to the failure mode of the bolted joints. An increase in loading speed changes the failure process from sequential bolt fracture to a sudden, simultaneous failure of both fasteners. Besides, under dynamic loading, the bonding layer and bolts are co-loaded, resulting in a significant improvement in energy absorption for the multi-bolt joint, which has not been observed under quasi-static loading. 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