Statistically determination and evaluation of photoelastic limits for heat-strengthened glass

Statistically determination and evaluation of photoelastic limits for heat-strengthened glass | 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 Statistically determination and evaluation of photoelastic limits for heat-strengthened glass Lena Efferz, Christian Schuler, Geralt Siebert This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9095967/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 9 You are reading this latest preprint version Abstract Heat-strengthened glass requires a carefully controlled tempering process to achieve the desired residual stress state. On the one hand, the required bending strength of 70 MPa must be ensured. On the other hand, the characteristic, coarse fracture pattern of heat-strengthened glass must be maintained so that laminated glass elements retain residual load-bearing capacity after breakage. In current quality control procedures, these requirements are typically verified by destructive testing. Photoelastic measurement of residual stresses provides a non-destructive method for evaluating the stress state in glass panes. However, defining suitable limit values for heat-strengthened glass remains challenging, as a permissible range rather than a single threshold is required. This study presents a statistical determination and evaluation of photoelastic limits for heat-strengthened glass based on measurements of surface and edge stresses. In addition, thickness-dependent behavior is investigated, since current limit values in standards and literature generally do not account for glass thickness. Finally, the study discusses whether the proposed limits can improve the reliability of non-destructive quality control and support the assessment of heat-strengthened glass components in practical applications. Full Text Additional Declarations Competing interest reported. Geralt Siebert is an Editorial Board Member of Glass Structures & Engineering. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 03 May, 2026 Reviews received at journal 25 Apr, 2026 Reviewers agreed at journal 24 Apr, 2026 Reviews received at journal 02 Apr, 2026 Reviewers agreed at journal 16 Mar, 2026 Reviewers invited by journal 15 Mar, 2026 Editor assigned by journal 12 Mar, 2026 Submission checks completed at journal 12 Mar, 2026 First submitted to journal 11 Mar, 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. 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-9095967","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":607009769,"identity":"b15f253a-2feb-4cae-8f3b-ff0d6db337ff","order_by":0,"name":"Lena Efferz","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA3UlEQVRIiWNgGAWjYBACPgglxw8iD3xsAFEJ+LWwQShjSaBixoczSdXCbMxLlBb23oMfGCoMJPiljz+Ttt2xjYGfPccAvxaec8kSDGcMJCT7EtKkc8/cZpDseUNAi0SOgQRj2586gzMMx6Rz224zGNwgZIv8G+MfjP8MJOzPMLZJWwK12BPUIsFjJsHYYCBhwMPMbMwIskWCoF9yzCwSjhlISJxhY3zY23abR+LMswK8WvjZzxjf+FADDLEe9gcHfrbdluNvT96AVwsYJCCxeQgrHwWjYBSMglFAEAAAWrk+eiz3r7IAAAAASUVORK5CYII=","orcid":"","institution":"Munich University of Applied Sciences","correspondingAuthor":true,"prefix":"","firstName":"Lena","middleName":"","lastName":"Efferz","suffix":""},{"id":607009770,"identity":"ba61ce3b-3469-42a3-ac5b-0499b2ad1fa5","order_by":1,"name":"Christian Schuler","email":"","orcid":"","institution":"Munich University of Applied Sciences","correspondingAuthor":false,"prefix":"","firstName":"Christian","middleName":"","lastName":"Schuler","suffix":""},{"id":607009771,"identity":"323f5d7c-4ce8-42b4-a917-e7fd7ed8ccc5","order_by":2,"name":"Geralt Siebert","email":"","orcid":"","institution":"Bundeswehr University Munich","correspondingAuthor":false,"prefix":"","firstName":"Geralt","middleName":"","lastName":"Siebert","suffix":""}],"badges":[],"createdAt":"2026-03-11 15:08:42","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9095967/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9095967/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":104783454,"identity":"a8088b12-da57-4cc0-bf98-bd5d9254cabd","added_by":"auto","created_at":"2026-03-17 07:59:01","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1215059,"visible":true,"origin":"","legend":"","description":"","filename":"260311Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9095967/v1_covered_0df90c52-eb8a-40ee-acb5-792748d7f8cc.pdf"}],"financialInterests":"Competing interest reported. 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