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Contact mesh approach in explicit finite element method: an application to a severe contact problem

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dc.contributor.advisor-co1Weyler, Rafael
dc.contributor.advisor1Oliveira, Sonia Aparecida Goulart de
dc.contributor.referee1Souza, Francisco Jose
dc.contributor.referee2Silva Jr, Washington Martins
dc.contributor.referee3Batalha, Gilmar Ferreira
dc.contributor.referee4Landre Jr, Janes
dc.creatorFelice Neto, Fábio Raffael
dc.crossref.doibatchidpublicado no crossref antes da rotina xml
dc.date.accessioned2018-01-26T17:28:43Z
dc.date.available2018-01-26T17:28:43Z
dc.date.issued2016-10-10
dc.description.degreenameTese (Doutorado)pt_BR
dc.description.resumoThe contact problem in Finite Element Method formulations is characterized as an optimization problem, in which the boundary conditions generate a contact penetration gap that must be minimized to maintain the physics of the problem. Normally the contact initiation depends on a search frequency and bodies’ velocities, resulting inconsiderable errors when in severe contact cases. So this work aims to propose a contact mesh approach in an Explicit Finite Element Method. This contact mesh links the probable contact regions and minimizes the potential error. To validate the material formulation and properties a tensile strength experiment was simulated. And in order to test the method efficiency, a microindentation experiment that represents a severe contact problem was simulated using explicit and implicit time integration methods. As results both methods showed similar good results when compared to experimental tests, but the implicit approach had better results in total time execution. It was possible to understand the deformation phenomenon in the microindentation test and also other related phenomena, such as the stress field and the pile up.pt_BR
dc.identifier.citationFELICE-NETO, Fabio Raffael. Contact mesh approach in explicit finite element method: an application to a severe contact problem, 2016. 135f. Tese, Universidade Federal de Uberlândia, Uberlândia, 2016. Programa de Pós-graduação em Engenharia Mecânica.pt_BR
dc.identifier.doihttp://dx.doi.org/10.14393/ufu.te.2017.3pt_BR
dc.identifier.urihttps://repositorio.ufu.br/handle/123456789/20391
dc.languageengpt_BR
dc.publisherUniversidade Federal de Uberlândiapt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.programPrograma de Pós-graduação em Engenharia Mecânicapt_BR
dc.rightsAcesso Abertopt_BR
dc.sizeorduration135pt_BR
dc.subjectFinite Element Methodpt_BR
dc.subjectContact meshpt_BR
dc.subjectMicroindentation simulationpt_BR
dc.subjectExplicit finite element methodpt_BR
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA MECANICA::MECANICA DOS SOLIDOSpt_BR
dc.titleContact mesh approach in explicit finite element method: an application to a severe contact problempt_BR
dc.typeTesept_BR
dspace.entity.typePublication

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TESE - Engenharia Mecânica