Exploring the effect of pore shape on mechanical properties of porous rock-like materials under uniaxial compression via DEM

Exploring the effect of pore shape on mechanical properties of porous rock-like materials under uniaxial compression via DEM | 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 Article Exploring the effect of pore shape on mechanical properties of porous rock-like materials under uniaxial compression via DEM Chuanfeng Fang, Weijian Yu, Ping Wang, Zizheng Zhang, Baifu An, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5259970/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 The pore shape is a crucial factor affecting the mechanical properties and failure characteristics of porous rock-like materials. This paper quantitatively analyzes the effects of the angularity and aspect ratio of pores on the mechanical properties of porous rock-like materials under uniaxial compression via the Discrete Element Method (DEM). Numerical models containing pores of various shapes were constructed as Voronoi polygon aggregates to more realistically reflect material fracture. The results indicate that as either angularity or aspect ratio increases, the uniaxial compressive strength and elastic modulus decrease in distinct patterns, while Poisson's ratio remains constant. Additionally, an increase in angularity or aspect ratio not only causes cracks to initiate at the sharp corner and make the crack deviate from the axial loading direction, but also results in an increase in the total length of cracks and the number of fragments. Finally, the evolution of the microstructure, including contact forces and the spatial distribution of stress, was evaluated to investigate the impact of pore shape on microscopic characteristics. Physical sciences/Materials science Physical sciences/Engineering Physical sciences/Energy science and technology Pore shape Mechanical properties Failure characteristics DEM simulation Uniaxial compression 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. 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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-5259970","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":379482400,"identity":"bfa9bb76-58b4-4f68-8189-ee2a0d4b070d","order_by":0,"name":"Chuanfeng 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This paper quantitatively analyzes the effects of the angularity and aspect ratio of pores on the mechanical properties of porous rock-like materials under uniaxial compression via the Discrete Element Method (DEM). Numerical models containing pores of various shapes were constructed as Voronoi polygon aggregates to more realistically reflect material fracture. The results indicate that as either angularity or aspect ratio increases, the uniaxial compressive strength and elastic modulus decrease in distinct patterns, while Poisson's ratio remains constant. Additionally, an increase in angularity or aspect ratio not only causes cracks to initiate at the sharp corner and make the crack deviate from the axial loading direction, but also results in an increase in the total length of cracks and the number of fragments. Finally, the evolution of the microstructure, including contact forces and the spatial distribution of stress, was evaluated to investigate the impact of pore shape on microscopic characteristics.\u003c/p\u003e","manuscriptTitle":"Exploring the effect of pore shape on mechanical properties of porous rock-like materials under uniaxial compression via DEM","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-11-25 04:46:25","doi":"10.21203/rs.3.rs-5259970/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":"88b87987-8434-4e1e-a486-120cdd453da6","owner":[],"postedDate":"November 25th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":40408575,"name":"Physical sciences/Materials science"},{"id":40408576,"name":"Physical sciences/Engineering"},{"id":40408577,"name":"Physical sciences/Energy science and technology"}],"tags":[],"updatedAt":"2025-03-26T09:08:47+00:00","versionOfRecord":[],"versionCreatedAt":"2024-11-25 04:46:25","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-5259970","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-5259970","identity":"rs-5259970","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}