Study on the improvement method of Goodman-Smith Fatigue Limit Diagrams based on IIW Standard and Unilateral Tolerance Coefficient Method

Study on the improvement method of Goodman-Smith Fatigue Limit Diagrams based on IIW Standard and Unilateral Tolerance Coefficient Method | 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 the improvement method of Goodman-Smith Fatigue Limit Diagrams based on IIW Standard and Unilateral Tolerance Coefficient Method Jiayu Liu, Yuedong Wang, Jiaqi Zhang, Yuhan Tang, Qi Dong, Letian Fan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4734245/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 5 You are reading this latest preprint version Abstract The Goodman-Smith (GS) diagrams are widely used for fatigue strength assessment of bogies as a common method for welded structures. The traditional GS diagrams proposed by the UIC ORE B12/RP17 standard suffer from the problems of too large a safety factor leading to loose assessment results, data scarcity, and low safety margins for low survival rates. Therefore, an improved method of GS diagrams for base metals and welded joints was proposed. The traditional GS diagrams were improved by combining the IIW standard and the unilateral tolerance coefficient method. The design guidelines of the traditional GS diagrams were incorporated into the improved GS diagrams to obtain the improved design guidelines. Within this framework, the improved GS diagrams were validated by applying base metal specimens with three common welded joints. The results showed that the safety factor was reduced to 0.3–0.5 times the original factor for the same survival rate and confidence level. The accuracy of the fatigue strength assessment was improved. Finally, the improved GS diagrams were used for the fatigue strength assessment of the critical base metal and weld region of the bogie frame, which provided a new reference for the fatigue strength assessment research in the field of rail transport. Goodman-Smith diagrams IIW standard one-sided tolerance coefficient method bogie frames Full Text Cite Share Download PDF Status: Under Review Version 1 posted Reviewers agreed at journal 06 Aug, 2024 Reviewers invited by journal 01 Aug, 2024 Editor invited by journal 21 Jul, 2024 Editor assigned by journal 15 Jul, 2024 First submitted to journal 13 Jul, 2024 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-4734245","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":334915697,"identity":"0fc8c700-dcc5-497d-ad5e-d2f68ecc0883","order_by":0,"name":"Jiayu Liu","email":"","orcid":"","institution":"Dalian Jiaotong University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Jiayu","middleName":"","lastName":"Liu","suffix":""},{"id":334915698,"identity":"0a545cc9-d181-4a3f-bb86-670a574f4065","order_by":1,"name":"Yuedong 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The traditional GS diagrams proposed by the UIC ORE B12/RP17 standard suffer from the problems of too large a safety factor leading to loose assessment results, data scarcity, and low safety margins for low survival rates. Therefore, an improved method of GS diagrams for base metals and welded joints was proposed. The traditional GS diagrams were improved by combining the IIW standard and the unilateral tolerance coefficient method. The design guidelines of the traditional GS diagrams were incorporated into the improved GS diagrams to obtain the improved design guidelines. Within this framework, the improved GS diagrams were validated by applying base metal specimens with three common welded joints. The results showed that the safety factor was reduced to 0.3\u0026ndash;0.5 times the original factor for the same survival rate and confidence level. The accuracy of the fatigue strength assessment was improved. Finally, the improved GS diagrams were used for the fatigue strength assessment of the critical base metal and weld region of the bogie frame, which provided a new reference for the fatigue strength assessment research in the field of rail transport.\u003c/p\u003e","manuscriptTitle":"Study on the improvement method of Goodman-Smith Fatigue Limit Diagrams based on IIW Standard and Unilateral Tolerance Coefficient Method","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-08-28 09:08:56","doi":"10.21203/rs.3.rs-4734245/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"reviewerAgreed","content":"","date":"2024-08-06T07:05:06+00:00","index":0,"fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-08-01T19:44:26+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"Welding in the World","date":"2024-07-21T14:01:59+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-07-15T09:45:45+00:00","index":"","fulltext":""},{"type":"submitted","content":"Welding in the World","date":"2024-07-13T04:23:19+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"welding-in-the-world","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"witw","sideBox":"Learn more about [Welding in the World](https://www.springer.com/journal/40194)","snPcode":"40194","submissionUrl":"https://www.editorialmanager.com/witw/","title":"Welding in the World","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"873e9a6b-ddf1-46f3-ad6f-598dfc549853","owner":[],"postedDate":"August 28th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2025-01-06T21:17:25+00:00","versionOfRecord":[],"versionCreatedAt":"2024-08-28 09:08:56","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4734245","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4734245","identity":"rs-4734245","version":["v1"]},"buildId":"WrCJVZZCHTDjtuVLN7oU0","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}