Prediction of ring crack initiation in ceramics and glasses using a stress-energy fracture criterion

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dc.contributor.authorPapšík, Romancs
dc.contributor.authorŠeveček, Oldřichcs
dc.contributor.authorMartin, Ériccs
dc.contributor.authorBermejo, Raulcs
dc.coverage.issue7cs
dc.coverage.volume106cs
dc.date.issued2023-02-25cs
dc.description.abstractCrack initiation in brittle materials upon spherical indentation is associated with the tensile radial stresses during loading. However, location of crack onset often differs (offset) from the site of maximal stress. In addition, experiments reveal a strong dependency of crack initiation forces on geometrical parameters as well as the surface condition of the sample. In this work, a coupled stress-energy fracture criterion is introduced to describe the initiation of ring cracks in brittle materials, which takes into account the geometry of the contact and the inherent strength and fracture toughness of the material. Several experiments reported in literature are evaluated and compared. The criterion can explain the location offset of the ring crack upon loading, as observed in various ceramics and glasses. It also predicts the ring crack initiation force upon contact loading, provided that surface compressive stresses, introduced during grinding or polishing processes, are taken into account. Furthermore, the stress-energy criterion may be employed to estimate the surface residual stress of ceramic parts, based on simple contact damage experiments.en
dc.formattextcs
dc.format.extent14cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of the American Ceramic Society. 2023, vol. 106, issue 7, 14 p.en
dc.identifier.doi10.1111/jace.19076cs
dc.identifier.issn0002-7820cs
dc.identifier.orcid0000-0003-3442-2650cs
dc.identifier.other183389cs
dc.identifier.researcheridF-8238-2013cs
dc.identifier.scopus35320409600cs
dc.identifier.urihttp://hdl.handle.net/11012/244300
dc.language.isoencs
dc.publisherWILEYcs
dc.relation.ispartofJournal of the American Ceramic Societycs
dc.relation.urihttps://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.19076cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0002-7820/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbrittle fractureen
dc.subjectcoupled criterionen
dc.subjectcrack initiationen
dc.subjectfinite fracture mechanicsen
dc.subjectring cracken
dc.titlePrediction of ring crack initiation in ceramics and glasses using a stress-energy fracture criterionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183389en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:49:18en
sync.item.modts2025.01.17 18:41:29en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
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