Numerical investigation of the thermal response and Mechanical Behavior of Water Distribution Pipelines subjected to extreme Cold Wave

Numerical investigation of the thermal response and Mechanical Behavior of Water Distribution Pipelines subjected to extreme Cold Wave | 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 Numerical investigation of the thermal response and Mechanical Behavior of Water Distribution Pipelines subjected to extreme Cold Wave Hu Qunfang, Olawale Ayinde, Wang Fei, Che Delu, Su Zhan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4359537/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 Water distribution pipelines play a critical role in delivering safe drinking water to communities, yet their susceptibility to extreme climate events presents significant safety and structural challenges. Recent observations have noted an increase in pipe failures during cold waves, underscoring the need to address these risks. While much research has focused on statistical analysis of pipe failures due to low temperatures, limited attention has been given to the mechanical behavior of pipelines under thermal-induced stress during cold waves. This study addresses this gap by developing a 3D finite element model to investigate the thermal responses and mechanical behavior of buried water distribution pipelines under cold wave conditions. Key parameters including temperature differences, soil temperature reduction rates, pipe wall thickness, and internal water pressure are examined to understand their effects on pipeline stress, strain, and displacement. Results show that as pipe temperature decreases, the pipe contracts, particularly impacting the springline. Over time, pipeline stress transitions from tension to compression. A temperature difference of approximately 18℃ leads to an 85% increase in axial strain and a 6.5% increase in Mises stress. Increasing the rate of temperature reduction minimally affects pipeline stress but significantly impacts displacements. Moreover, increasing pipe wall thickness effectively reduces pipeline stress by 102.8% and axial strain by 17.4%. Higher internal water pressure results in elevated pipeline stress but reduced displacement. These findings underscore the importance of considering thermal-mechanical interactions during cold waves to prevent failures and ensure operational integrity in water distribution pipelines. Underground Pipeline Cold wave FEM Von Mises stress Mechanical behavior 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-4359537","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":298979767,"identity":"9f5ecdc4-a6b6-4b66-9596-234b46ad76ed","order_by":0,"name":"Hu Qunfang","email":"","orcid":"","institution":"Key Laboratory of Urban Safety Risk Monitoring and Early Warning of the Ministry of Emergency Management","correspondingAuthor":false,"prefix":"","firstName":"Hu","middleName":"","lastName":"Qunfang","suffix":""},{"id":298979772,"identity":"14eb56ef-2ff3-4aba-adf0-ad55db2d4c50","order_by":1,"name":"Olawale 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