Study on impact damage defects of carbon fiber reinforced composites by optical pulse thermography

Study on impact damage defects of carbon fiber reinforced composites by optical pulse thermography | 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 Study on impact damage defects of carbon fiber reinforced composites by optical pulse thermography Guozeng Liu, Weicheng Gao, Wei Liu, Yanze Wei, Jianxun Xu, Rui Li, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2048267/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 Carbon fiber reinforced composites (CFRP) are widely used in the aviation industry and other fields. During service, the surface of CFRP is vulnerable to impact and damage defects, which poses a threat to the safety of CFRP quality. The halogen lamp is used as the active heat source of the sample. Based on the built optical pulse thermography (OPT) test system, The sample with impact damage under long pulse excitation is studied. The thermal response of impact damage samples was collected by infrared camera A655sc. The original infrared image sequence is processed by pulse phase method (PPT), thermal signal reconstruction (TSR), and total harmonic distortion (THD). The results show that the signal-to-noise ratio (SNR) of Original images processed by PPT, TSR, and THD is improved, while the SNR of THD is significantly improved. More impact damage defects recognition effect is obtained by optical pulse thermography. Optical pulse thermography (OPT) Impact damage Thermal response Carbon fiber reinforced composites (CFRP) Signal-to-noise ratio (SNR) 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. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-2048267","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":138376788,"identity":"0762bc11-bc15-4a0b-8c80-278203169f02","order_by":0,"name":"Guozeng Liu","email":"","orcid":"","institution":"Harbin Institute of Technology","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Guozeng","middleName":"","lastName":"Liu","suffix":""},{"id":138376789,"identity":"23a2301c-4420-4037-904a-53a325d80158","order_by":1,"name":"Weicheng 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(CFRP), Signal-to-noise ratio (SNR)","lastPublishedDoi":"10.21203/rs.3.rs-2048267/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-2048267/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eCarbon fiber reinforced composites (CFRP) are widely used in the aviation industry and other fields. During service, the surface of CFRP is vulnerable to impact and damage defects, which poses a threat to the safety of CFRP quality. The halogen lamp is used as the active heat source of the sample. Based on the built optical pulse thermography (OPT) test system, The sample with impact damage under long pulse excitation is studied. The thermal response of impact damage samples was collected by infrared camera A655sc. The original infrared image sequence is processed by pulse phase method (PPT), thermal signal reconstruction (TSR), and total harmonic distortion (THD). The results show that the signal-to-noise ratio (SNR) of Original images processed by PPT, TSR, and THD is improved, while the SNR of THD is significantly improved. More impact damage defects recognition effect is obtained by optical pulse thermography.\u003c/p\u003e","manuscriptTitle":"Study on impact damage defects of carbon fiber reinforced composites by optical pulse thermography","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2022-09-27 01:13:32","doi":"10.21203/rs.3.rs-2048267/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","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}}],"origin":"","ownerIdentity":"ef076dbb-f37c-49f5-9e00-728d06e583ed","owner":[],"postedDate":"September 27th, 2022","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2023-05-16T09:44:17+00:00","versionOfRecord":[],"versionCreatedAt":"2022-09-27 01:13:32","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-2048267","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-2048267","identity":"rs-2048267","version":["v1"]},"buildId":"WrCJVZZCHTDjtuVLN7oU0","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}