{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/6235"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/6235","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Uma estratégia adaptativa para problemas de contato em elasticidade","abstract":"ln this work an adaptive remeshing scheme in used to solve contact problems with Coulomb friction. An existing 2D mesh generator based on a frontal technique is used for the construction of the initial mesh of triangular elements. The contact problem is then solved using a sequence of sub-problems P1,P2,P1,P2,... where P1 is the corresponding frictionless problem with given tangential forces along the contact area and P2 is the associated Duvaut-Lions problem of given normal forces and Coulomb-type friction boundary conditions along the contact region. When the convergence is achieved error estimates are computed and new values for the size of elements in the mesh are determined. The process is repeated until a pre-assigned error levei is reached. Numerical examples of the procedure are presented.","abstract_html":"ln this work an adaptive remeshing scheme in used to solve contact problems with Coulomb friction. An existing 2D mesh generator based on a frontal technique is used for the construction of the initial mesh of triangular elements. The contact problem is then solved using a sequence of sub-problems P1,P2,P1,P2,... where P1 is the corresponding frictionless problem with given tangential forces along the contact area and P2 is the associated Duvaut-Lions problem of given normal forces and Coulomb-type friction boundary conditions along the contact region. When the convergence is achieved error estimates are computed and new values for the size of elements in the mesh are determined. The process is repeated until a pre-assigned error levei is reached. Numerical examples of the procedure are presented.","abstract_has_math":false,"creators":["Lemonge, Afonso Celso de Castro"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Landau, Luiz"],"committee_chairs":[],"committee_members":[],"year":1992,"date_issued":"1992-06","date_published":"1992-06","updated_at":"2026-07-24T01:16:21Z","subjects":["Atrito","Ação preventiva"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/6235","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Landau, Luiz"]},{"key":"dc:creator","label":"Author","values":["Lemonge, Afonso Celso de Castro"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-01-25T15:05:13Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:20Z"]},{"key":"dc:date.issued","label":"Date","values":["1992-06"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Atrito","Ação preventiva"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/6235"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["ln this work an adaptive remeshing scheme in used to solve contact problems with Coulomb friction. An existing 2D mesh generator based on a frontal technique is used for the construction of the initial mesh of triangular elements. The contact problem is then solved using a sequence of sub-problems P1,P2,P1,P2,... where P1 is the corresponding frictionless problem with given tangential forces along the contact area and P2 is the associated Duvaut-Lions problem of given normal forces and Coulomb-type friction boundary conditions along the contact region. When the convergence is achieved error estimates are computed and new values for the size of elements in the mesh are determined. The process is repeated until a pre-assigned error levei is reached. Numerical examples of the procedure are presented."]},{"key":"dc:title","label":"Title","values":["Uma estratégia adaptativa para problemas de contato em elasticidade"]}]}],"canonical_facts":{"dc:contributor.advisor":["Landau, Luiz"],"dc:creator":["Lemonge, Afonso Celso de Castro"],"dc:date.accessioned":["2019-01-25T15:05:13Z"],"dc:date.available":["2026-05-16T03:04:20Z"],"dc:date.issued":["1992-06"],"dc:description.abstract":["ln this work an adaptive remeshing scheme in used to solve contact problems with Coulomb friction. An existing 2D mesh generator based on a frontal technique is used for the construction of the initial mesh of triangular elements. The contact problem is then solved using a sequence of sub-problems P1,P2,P1,P2,... where P1 is the corresponding frictionless problem with given tangential forces along the contact area and P2 is the associated Duvaut-Lions problem of given normal forces and Coulomb-type friction boundary conditions along the contact region. When the convergence is achieved error estimates are computed and new values for the size of elements in the mesh are determined. The process is repeated until a pre-assigned error levei is reached. Numerical examples of the procedure are presented."],"dc:identifier.uri":["http://hdl.handle.net/11422/6235"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Atrito","Ação preventiva"],"dc:title":["Uma estratégia adaptativa para problemas de contato em elasticidade"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:21Z"}