Logo do repositório

Computational modeling of cracking in cortical bone microstructure using the mesh fragmentation technique

dc.contributor.authorBarros, Marcos A. M. de
dc.contributor.authorManzoli, Osvaldo L. [UNESP]
dc.contributor.authorBitencourt, Luís A. G.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversität Duisburg-Essen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2025-04-29T20:11:12Z
dc.date.issued2024-09-01
dc.description.abstractThe cortical bone is a hierarchical composite material that, at the microscale, is segmented in an interstitial matrix, cement line, osteons, and Haversian canals. The cracking of the structure at this scale directly influences the macro behavior, and, in this context, the cement line has a protagonist role. In this sense, this work aims to simulate the crack initiation and propagation processes via cortical bone microstructure modeling with a two-dimensional mesh fragmentation technique that captures the mechanical relevance of its constituents. In this approach, high aspect ratio elements are inserted between the regular constant strain triangle finite elements to define potential crack paths a priori. The crack behavior is described using a composed damage model with two scalar damage variables, which is integrated by an implicit-explicit (Impl-Ex) scheme to avoid convergence problems usually found in numerical simulations involving multiple cracks. The approach’s capability of modeling the failure process in cortical bone microstructure is investigated by simulating four conceptual problems and one example based on a digital image of an experimental test. The results obtained in terms of crack pattern and failure mechanisms agree with those described in the literature, demonstrating that the numerical tool is promising to simulate the complex failure mechanisms in cortical bone, considering the properties of its distinct phases.en
dc.description.affiliationDepartment of Structural and Geotechnical Engineering University of São Paulo (USP), Av. Prof. Almeida Prado, trav. 2, 83, SP
dc.description.affiliationInstitut für Mechanik Universität Duisburg-Essen, Universitätsstraße 15
dc.description.affiliationDepartment of Civil Engineering São Paulo State University (UNESP), Av. Eng. Luís Edmundo Carrijo Coube, 14-01 - Vargem Limpa, SP
dc.description.affiliationUnespDepartment of Civil Engineering São Paulo State University (UNESP), Av. Eng. Luís Edmundo Carrijo Coube, 14-01 - Vargem Limpa, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 307175/2022-7
dc.description.sponsorshipIdCNPq: 310223/2020-2
dc.description.sponsorshipIdCAPES: Finance Code 001
dc.format.extent2583-2601
dc.identifierhttp://dx.doi.org/10.1007/s00419-024-02574-w
dc.identifier.citationArchive of Applied Mechanics, v. 94, n. 9, p. 2583-2601, 2024.
dc.identifier.doi10.1007/s00419-024-02574-w
dc.identifier.issn1432-0681
dc.identifier.issn0939-1533
dc.identifier.scopus2-s2.0-85187900161
dc.identifier.urihttps://hdl.handle.net/11449/308075
dc.language.isoeng
dc.relation.ispartofArchive of Applied Mechanics
dc.sourceScopus
dc.subjectCement line
dc.subjectCortical bone
dc.subjectCrack propagation
dc.subjectMesh fragmentation technique
dc.subjectOsteons
dc.titleComputational modeling of cracking in cortical bone microstructure using the mesh fragmentation techniqueen
dc.typeArtigopt
dspace.entity.typePublication

Arquivos

Coleções