Ethylene vinyl acetate (EVA) cross-linked with dicumyl peroxide (DCP): Studies of viscoelastic and damping properties

Ethylene vinyl acetate (EVA) cross-linked with dicumyl peroxide (DCP): Studies of viscoelastic and damping properties | 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 Ethylene vinyl acetate (EVA) cross-linked with dicumyl peroxide (DCP): Studies of viscoelastic and damping properties Prasad Waste, Bhagwan Jogi, Debdatta Ratna, Hemant Warhatkar, and 5 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8885899/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 12 You are reading this latest preprint version Abstract Uncontrolled vibrations reduce safety, durability, efficiency, comfort, and overall performance in engineering systems; therefore, effective vibration damping is essential. Viscoelastic materials play a crucial role in vibration damping due to their ability to dissipate energy, their tunable properties, and their broad range of applications. Ethylene vinyl acetate (EVA), a thermoplastic copolymer with inherent viscoelastic properties, is widely used in vibration-damping applications. However, its damping capacity can be further improved through cross-linking. This study investigates the damping performance of ethylene vinyl acetate with 18 wt%. vinyl acetate content (EVA-18) modified with 1–4 wt.% dicumyl peroxide (DCP) as a cross-linking agent. Mechanical properties were measured through tensile testing, and viscoelastic behaviour was characterized using Dynamic Mechanical Analysis (DMA). Damping performance was evaluated by Experimental Modal Analysis (EMA) in free-layer damping (FLD) and constrained-layer damping (CLD) configurations. Frequency-dependent system loss factors were predicted using B.C. Nakra’s analytical formulations were compared with EMA results. In FLD, the 1 wt.The DCP sample (EVA-1) showed the highest average loss factor (0.034), whereas in CLD, the unmodified EVA-0 exhibited the most significant loss factor (0.069). These results clarify how controlled DCP cross-linking modifies the viscoelastic and damping behaviour of EVA-18 and indicate its potential use in vibration control applications in automotive, aerospace, and structural engineering. Viscoelastic Damping EVA-18 Cross-linked polymers Dynamic Mechanical Analysis (DMA) Experimental Modal Analysis (EMA) Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 23 Mar, 2026 Reviews received at journal 14 Mar, 2026 Reviews received at journal 09 Mar, 2026 Reviews received at journal 05 Mar, 2026 Reviewers agreed at journal 04 Mar, 2026 Reviewers agreed at journal 02 Mar, 2026 Reviewers agreed at journal 27 Feb, 2026 Reviewers invited by journal 25 Feb, 2026 Editor invited by journal 23 Feb, 2026 Editor assigned by journal 17 Feb, 2026 Submission checks completed at journal 17 Feb, 2026 First submitted to journal 15 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. 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-8885899","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":598165589,"identity":"29fd5bc3-8a76-461a-9197-a9e0e1668ad5","order_by":0,"name":"Prasad Waste","email":"","orcid":"","institution":"Dr. Babasaheb Ambedkar Technological University","correspondingAuthor":false,"prefix":"","firstName":"Prasad","middleName":"","lastName":"Waste","suffix":""},{"id":598165594,"identity":"6f6fc8f5-527d-4909-be69-3aed6345750b","order_by":1,"name":"Bhagwan Jogi","email":"","orcid":"","institution":"Dr. Babasaheb Ambedkar Technological 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Viscoelastic materials play a crucial role in vibration damping due to their ability to dissipate energy, their tunable properties, and their broad range of applications. Ethylene vinyl acetate (EVA), a thermoplastic copolymer with inherent viscoelastic properties, is widely used in vibration-damping applications. However, its damping capacity can be further improved through cross-linking. This study investigates the damping performance of ethylene vinyl acetate with 18 wt%. vinyl acetate content (EVA-18) modified with 1\u0026ndash;4 wt.% dicumyl peroxide (DCP) as a cross-linking agent. Mechanical properties were measured through tensile testing, and viscoelastic behaviour was characterized using Dynamic Mechanical Analysis (DMA). Damping performance was evaluated by Experimental Modal Analysis (EMA) in free-layer damping (FLD) and constrained-layer damping (CLD) configurations. Frequency-dependent system loss factors were predicted using B.C. Nakra\u0026rsquo;s analytical formulations were compared with EMA results. In FLD, the 1 wt.The DCP sample (EVA-1) showed the highest average loss factor (0.034), whereas in CLD, the unmodified EVA-0 exhibited the most significant loss factor (0.069). 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