Design Equations for Mixed-Mode Fracture of Dental Ceramic–Cement Interfaces Using the Brazil-Nut-Sandwich Test

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of Connecticut-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Pennsylvania-
Autor(es): dc.creatorManan, David Tamim-
Autor(es): dc.creatorKim, Jeongho-
Autor(es): dc.creatorde Melo, Renata Marques-
Autor(es): dc.creatorZhang, Yu-
Data de aceite: dc.date.accessioned2025-08-21T19:39:44Z-
Data de disponibilização: dc.date.available2025-08-21T19:39:44Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1115/1.4050972-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230630-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230630-
Descrição: dc.descriptionDental interfaces are subject to mixed-mode loading. This study provides practical guidance for determining interfacial fracture toughness of dental ceramic systems. We address interfacial fracture of a composite resin cement sandwiched between two dental ceramic materials. Emphasis is placed on sandwich disc specimens with cracks originating from elliptical-shaped flaws near the center, for which analytical fracture mechanics methods fail to predict. The interaction integral method is used to provide accurate finite element solutions for cracks with elliptical-shaped flaws in a Brazil-nut-sandwich specimen. The developed model was first validated with existing experimental data and then used to evaluate the three most widely used dental ceramic systems: polycrystalline ceramics (zirconia), glass-ceramics (lithium disilicate), and feldspathic ceramics (porcelain). Contrary to disc specimens with ideal cracks, those with cracks emanating from elliptical-shaped flaws do not exhibit a monotonic increase in interfacial toughness. Also, interfacial fracture toughness is seen to have a direct relationship with the aspect ratio of elliptical-shaped flaws and an inverse relationship with the modulus ratio of the constituents. The presence of an elliptical-shaped flaw significantly changes the interfacial fracture behavior of sandwich structures. Semi-empirical design equations are provided for fracture toughness and stress intensity factors for interfacial cracks. The developed design equations provide practical guidance for determining interfacial fracture toughness of selected dental ceramic material systems. Those equations take into account four critical factors: size of the elliptical flaw, modulus ratio of constituent materials, loading angle, and applied load.-
Descrição: dc.descriptionDepartment of Civil and Environmental Engineering University of Connecticut, 261 Glenbrook Road, U-3037-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of Sao Jose dos Campos Sao Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartment of Preventive and Restorative Sciences School of Dental Medicine University of Pennsylvania-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of Sao Jose dos Campos Sao Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Engineering Materials and Technology, Transactions of the ASME-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazil-nut-sandwich test-
Palavras-chave: dc.subjectceramic restorations-
Palavras-chave: dc.subjectceramics-
Palavras-chave: dc.subjectcomposite resin cements-
Palavras-chave: dc.subjectelastic behavior-
Palavras-chave: dc.subjectfinite element analysis-
Palavras-chave: dc.subjectfracture toughness-
Palavras-chave: dc.subjectinterfacial fracture-
Palavras-chave: dc.subjectintermetallics-
Palavras-chave: dc.subjectmechanical behavior-
Palavras-chave: dc.subjectmetals-
Palavras-chave: dc.subjectpolymers-
Palavras-chave: dc.subjectstress intensity factors-
Palavras-chave: dc.subjecttheir composites-
Título: dc.titleDesign Equations for Mixed-Mode Fracture of Dental Ceramic–Cement Interfaces Using the Brazil-Nut-Sandwich Test-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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