{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/2777"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/2777","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Aplicação do método dos elementos finitos a problemas planos da mecânica de fratura","abstract":"In this work the problem of brittle fracture is discussed, attempting to obtain the stress intensity factors. In doing so a hybrid displacement finite element model is used. The fundamental concepts and theories of Fracture Mechanics are presented, firstly. Then, a hybrid functional, in which the displacements in the interior and on the boundary of the elements are assumed independently, is studied. Two different elements - a regular and a singular one - that can be used to the discretization of plain domains containing rectilinear cracks, are developed. Finally, the matrices employed in the assembling of the linear system of equations, obtained from the stationary value of the hybrid functional are explicitly derived.","abstract_html":"In this work the problem of brittle fracture is discussed, attempting to obtain the stress intensity factors. In doing so a hybrid displacement finite element model is used. The fundamental concepts and theories of Fracture Mechanics are presented, firstly. Then, a hybrid functional, in which the displacements in the interior and on the boundary of the elements are assumed independently, is studied. Two different elements - a regular and a singular one - that can be used to the discretization of plain domains containing rectilinear cracks, are developed. Finally, the matrices employed in the assembling of the linear system of equations, obtained from the stationary value of the hybrid functional are explicitly derived.","abstract_has_math":false,"creators":["Rocha, João Augusto de Lima"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Bevilacqua, Luiz"],"committee_chairs":[],"committee_members":[],"year":1976,"date_issued":"1976-12","date_published":"1976-12","updated_at":"2026-07-24T01:15:53Z","subjects":["Mecânica da fratura","Método dos elementos finitos"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/2777","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Bevilacqua, Luiz"]},{"key":"dc:creator","label":"Author","values":["Rocha, João Augusto de Lima"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-09-05T17:45:48Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:00Z"]},{"key":"dc:date.issued","label":"Date","values":["1976-12"]},{"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":["Mecânica da fratura","Método dos elementos finitos"]}]},{"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/11422/2777"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In this work the problem of brittle fracture is discussed, attempting to obtain the stress intensity factors. In doing so a hybrid displacement finite element model is used. The fundamental concepts and theories of Fracture Mechanics are presented, firstly. Then, a hybrid functional, in which the displacements in the interior and on the boundary of the elements are assumed independently, is studied. Two different elements - a regular and a singular one - that can be used to the discretization of plain domains containing rectilinear cracks, are developed. Finally, the matrices employed in the assembling of the linear system of equations, obtained from the stationary value of the hybrid functional are explicitly derived."]},{"key":"dc:title","label":"Title","values":["Aplicação do método dos elementos finitos a problemas planos da mecânica de fratura"]}]}],"canonical_facts":{"dc:contributor.advisor":["Bevilacqua, Luiz"],"dc:creator":["Rocha, João Augusto de Lima"],"dc:date.accessioned":["2017-09-05T17:45:48Z"],"dc:date.available":["2026-05-16T03:04:00Z"],"dc:date.issued":["1976-12"],"dc:description.abstract":["In this work the problem of brittle fracture is discussed, attempting to obtain the stress intensity factors. In doing so a hybrid displacement finite element model is used. The fundamental concepts and theories of Fracture Mechanics are presented, firstly. Then, a hybrid functional, in which the displacements in the interior and on the boundary of the elements are assumed independently, is studied. Two different elements - a regular and a singular one - that can be used to the discretization of plain domains containing rectilinear cracks, are developed. Finally, the matrices employed in the assembling of the linear system of equations, obtained from the stationary value of the hybrid functional are explicitly derived."],"dc:identifier.uri":["http://hdl.handle.net/11422/2777"],"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":["Mecânica da fratura","Método dos elementos finitos"],"dc:title":["Aplicação do método dos elementos finitos a problemas planos da mecânica de fratura"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:15:53Z"}