Acoustic Emission Analysis for crack initiation in AA7075-T6 Alloy Under Multiaxial Fatigue

Acoustic Emission Analysis for crack initiation in AA7075-T6 Alloy Under Multiaxial Fatigue | 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 Acoustic Emission Analysis for crack initiation in AA7075-T6 Alloy Under Multiaxial Fatigue Ali Bastani Lay, Amirhossein Beigi, Mehdi Ahmadi Najafabadi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3836918/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 May, 2024 Read the published version in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science → Version 1 posted You are reading this latest preprint version Abstract In most critical components, fatigue occurs under mixed loadings, such as bending and tensile cyclic loading. Thus, preventing the multiaxial fatigue failure of sensitive structures, such as airframes, is crucial. Furthermore, in the realm of multiaxial fatigue conditions, scant information has been documented regarding the combination of cyclic bending and tensile loading. Therefore, in this paper, Acoustic Emission (AE) as a non-destructive method was used to investigate crack initiation in AA7075-T6 specimens subjected to multiaxial fatigue conditions involving bending and tensile cyclic loading. The results showed that generated AE signals had the same trend in all tests, and there was a reasonable correlation between AE and mechanical characteristics. By correlating mechanical data and AE data using the sentry function, the failure process, which includes dislocation movement, plastic deformation, work hardening, micro-crack formation, and crack initiation, respectively, was identified. The S-N curve was plotted for multiaxial fatigue conditions by using AE monitoring. This curve was depicted as non-destructive and based on the crack initiation cycle. Obtaining the S-N curve by AE monitoring will be of great help to designers in the design of sensitive structures under multiaxial fatigue loading conditions. Acoustic Emission Multiaxial Fatigue Crack Initiation Aluminum Alloy Structural Health Monitoring Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 22 May, 2024 Read the published version in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science → 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-3836918","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":265562558,"identity":"042e3e03-9519-4115-aab4-a4df1fce3384","order_by":0,"name":"Ali Bastani Lay","email":"","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Ali","middleName":"Bastani","lastName":"Lay","suffix":""},{"id":265562559,"identity":"bd769054-6a91-4866-b5c6-7a197df44966","order_by":1,"name":"Amirhossein Beigi","email":"","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Amirhossein","middleName":"","lastName":"Beigi","suffix":""},{"id":265562560,"identity":"2bd7d14a-0053-431d-bedf-acda8dec9715","order_by":2,"name":"Mehdi Ahmadi Najafabadi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAv0lEQVRIiWNgGAWjYDACCSDmMWCQg/F5iNZizMDADNFCWI8ExOTEBqgWwtbwz+5O/PCm4E56/4z8Aww/ahhk7AlacufsZsk5Bs9yZ9xIZmDsOUaMw27kbpDmMTic2wDUwsDbQIQW+Ru5m38DtaTLg2z5S4wWgxu520C2JBgAtTATZYshUIvlHIPDhhvPPDY4LHNMgofnAAEtckCH3Xjz57C83PHEhw/f1NjYszcQsgYZHIBE0ygYBaNgFIwCigEAL4Q7sYeL3VYAAAAASUVORK5CYII=","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":true,"prefix":"","firstName":"Mehdi","middleName":"Ahmadi","lastName":"Najafabadi","suffix":""}],"badges":[],"createdAt":"2024-01-05 10:00:06","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3836918/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3836918/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1177/09544062241253716","type":"published","date":"2024-05-23T00:00:00+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":60329277,"identity":"211bf52d-f7f5-4b01-a098-aed94f7edda0","added_by":"auto","created_at":"2024-07-15 15:48:56","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1265565,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3836918/v1_covered_67e94455-0b2e-4c4c-965c-2a66c379c1ef.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Acoustic Emission Analysis for crack initiation in AA7075-T6 Alloy Under Multiaxial Fatigue","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":"[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":"Acoustic Emission, Multiaxial Fatigue, Crack Initiation, Aluminum Alloy, Structural Health Monitoring","lastPublishedDoi":"10.21203/rs.3.rs-3836918/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3836918/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn most critical components, fatigue occurs under mixed loadings, such as bending and tensile cyclic loading. 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