Experimental and numerical research on pseudo-ductility of carbon/glass hybrid composites with unidirectionally arrayed chopped strands

Experimental and numerical research on pseudo-ductility of carbon/glass hybrid composites with unidirectionally arrayed chopped strands | 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 Experimental and numerical research on pseudo-ductility of carbon/glass hybrid composites with unidirectionally arrayed chopped strands Junfeng Hu, Yinyuan Huang, Kefan Jin, Xutong Zhang, Wenlong Lu, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3828776/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 The mutual exclusion of strength and toughness in carbon fiber reinforced polymer (CFRP) composites has long perplexed composite material designers, despite the benefits of high specific strength and modulus in CFRP. In this study, unidirectionally arrayed chopped strands (UACS) are introduced into thin ply carbon fiber prepregs, which are stacked with S-glass fiber prepregs to fabricate carbon/glass hybrid laminates (C/G). Tensile characteristics and the mechanism of pseudo-ductility are explored experimentally and numerically in C/G hybrid laminates with varying material component ratios. In C/G hybrid specimens with the slit length of 20 mm and the material component ratio of 6%, obvious pseudo-ductility is found, and the pseudo-ductility strain increases by 116% as the C/G ratio increases from 6–18%, while the plateau stress reduces by 35.1%. The delamination propagation is reasonably even and slow in specimens with length slits of 20 mm, therefore, there is no rapid load drop during the tensile process. When the slit length is shorter than 20 mm, the stress concentration at the slit tip rises dramatically, resulting in more unstable load drops in load-displacement curves. The stress-strain curves derived by simulation correlate well with the experiment data, indicating that the numerical model used in this study is accurate. Pseudo-ductility Carbon/glass hybrid composite laminates Thin ply carbon fiber prepregs Finite element simulation Digital Image Correlation Full Text Additional Declarations No competing interests reported. Supplementary Files Datas.rar 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. We do this by developing innovative software and high quality services for the global research community. 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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-3828776","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":265372814,"identity":"2c953998-dc50-4f2e-a351-442ba18d3630","order_by":0,"name":"Junfeng 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strands","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":"Pseudo-ductility, Carbon/glass hybrid composite laminates, Thin ply carbon fiber prepregs, Finite element 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In this study, unidirectionally arrayed chopped strands (UACS) are introduced into thin ply carbon fiber prepregs, which are stacked with S-glass fiber prepregs to fabricate carbon/glass hybrid laminates (C/G). Tensile characteristics and the mechanism of pseudo-ductility are explored experimentally and numerically in C/G hybrid laminates with varying material component ratios. In C/G hybrid specimens with the slit length of 20 mm and the material component ratio of 6%, obvious pseudo-ductility is found, and the pseudo-ductility strain increases by 116% as the C/G ratio increases from 6\u0026ndash;18%, while the plateau stress reduces by 35.1%. The delamination propagation is reasonably even and slow in specimens with length slits of 20 mm, therefore, there is no rapid load drop during the tensile process. When the slit length is shorter than 20 mm, the stress concentration at the slit tip rises dramatically, resulting in more unstable load drops in load-displacement curves. 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