An orthotropic interface damage model for simulating drying processes in soils

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dc.contributor.authorManzoli, Osvaldo [UNESP]
dc.contributor.authorSánchez, Marcelo
dc.contributor.authorMaedo, Michael
dc.contributor.authorHajjat, Jumanah
dc.contributor.authorGuimarães, Leonardo J. N.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionTexas A&M University
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.date.accessioned2018-12-11T16:50:52Z
dc.date.available2018-12-11T16:50:52Z
dc.date.issued2018-10-01
dc.description.abstractThe study of drying process in soils has received an increased attention in the last few years. This is very complex phenomenon that generally leads to the formation and propagation of desiccation cracks in the soil mass. In recent engineering applications, high aspect ratio elements have proved to be well suited to tackle this type of problem using finite elements. However, the modeling of interfaces between materials with orthotropic properties that generally exist in this type of problem using standard (isotropic) constitutive model is very complex and challenging in terms of the mesh generation, leading to very fine meshes that are intensive CPU demanding. A novel orthotropic interface mechanical model based on damage mechanics and capable of dealing with interfaces between materials in which the strength depends on the direction of analysis is proposed in this paper. The complete mathematical formulation is presented together with the algorithm suggested for its numerical implementation. Some simple yet challenging synthetic benchmarks are analyzed to explore the model capabilities. Laboratory tests using different textures at the contact surface between materials were conducted to evaluate the strengths of the interface in different directions. These experiments were then used to validate the proposed model. Finally, the approach is applied to simulate an actual desiccation test involving an orthotropic contact surface. In all the application cases the performance of the model was very satisfactory.en
dc.description.affiliationDepartment of Civil Engineering São Paulo State University (UNESP)
dc.description.affiliationZachry Department of Civil Engineering Texas A&M University
dc.description.affiliationDepartment of Civil Engineering Federal University of Pernambuco
dc.description.affiliationUnespDepartment of Civil Engineering São Paulo State University (UNESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2016/19479-2
dc.description.sponsorshipIdCNPq: 234003/2014-6
dc.format.extent1171-1186
dc.identifierhttp://dx.doi.org/10.1007/s11440-017-0608-3
dc.identifier.citationActa Geotechnica, v. 13, n. 5, p. 1171-1186, 2018.
dc.identifier.doi10.1007/s11440-017-0608-3
dc.identifier.file2-s2.0-85037655721.pdf
dc.identifier.issn1861-1133
dc.identifier.issn1861-1125
dc.identifier.lattes7901652737291917
dc.identifier.orcid0000-0001-9004-7985
dc.identifier.scopus2-s2.0-85037655721
dc.identifier.urihttp://hdl.handle.net/11449/170453
dc.language.isoeng
dc.relation.ispartofActa Geotechnica
dc.relation.ispartofsjr1,588
dc.relation.ispartofsjr1,588
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDrying cracks
dc.subjectMesh fragmentation
dc.subjectOrthotropic interphase elements
dc.subjectOrthotropic shear strength
dc.subjectShrinkage 3D FE modeling
dc.titleAn orthotropic interface damage model for simulating drying processes in soilsen
dc.typeArtigo
unesp.author.lattes7901652737291917[1]
unesp.author.orcid0000-0001-9004-7985[1]

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