{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3372"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3372","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Elementos finitos para a análise limite de cascas axissimétricas via programação não-linear","abstract":"This work is concerned with rigid-plastic limit analysis of shells of revolution subject to rotationally symmetric loadings. These shells, of arbitrary shape, are discretized into a series of finite elements, each being a conical shell. The von Mises condition, valid for sandwich shells, is used. After assembling the finite elements, the limit analysis program is reduced to a simple application of the non-linear programming technique where the sequential unconstrained minimization technique (SUMT), the generalized reduced gradient method and the tolerance flexible method are utilized for statically admissible and kinematically admissible approaches. Therefore, upper bounds and lower bounds of the collapse loads are found for some problems: conical, spherical, ellipsoidal, torispherical shells etc. These numerical results are illustrated and compared with existing ones described in the literature and others provided from elastic-plastic analysis.","abstract_html":"This work is concerned with rigid-plastic limit analysis of shells of revolution subject to rotationally symmetric loadings. These shells, of arbitrary shape, are discretized into a series of finite elements, each being a conical shell. The von Mises condition, valid for sandwich shells, is used. After assembling the finite elements, the limit analysis program is reduced to a simple application of the non-linear programming technique where the sequential unconstrained minimization technique (SUMT), the generalized reduced gradient method and the tolerance flexible method are utilized for statically admissible and kinematically admissible approaches. Therefore, upper bounds and lower bounds of the collapse loads are found for some problems: conical, spherical, ellipsoidal, torispherical shells etc. These numerical results are illustrated and compared with existing ones described in the literature and others provided from elastic-plastic analysis.","abstract_has_math":false,"creators":["Fonseca Neto, João de Deus"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Ebecken, Nelson Francisco Favilla"],"committee_chairs":[],"committee_members":[],"year":1983,"date_issued":"1983-09","date_published":"1983-09","updated_at":"2026-07-24T01:16:01Z","subjects":["Engenharia Civil"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3372","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Ebecken, Nelson Francisco Favilla"]},{"key":"dc:creator","label":"Author","values":["Fonseca Neto, João de Deus"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-01-02T15:43:58Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:23Z"]},{"key":"dc:date.issued","label":"Date","values":["1983-09"]},{"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":["Engenharia Civil"]}]},{"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/11422/3372"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This work is concerned with rigid-plastic limit analysis of shells of revolution subject to rotationally symmetric loadings. These shells, of arbitrary shape, are discretized into a series of finite elements, each being a conical shell. The von Mises condition, valid for sandwich shells, is used. After assembling the finite elements, the limit analysis program is reduced to a simple application of the non-linear programming technique where the sequential unconstrained minimization technique (SUMT), the generalized reduced gradient method and the tolerance flexible method are utilized for statically admissible and kinematically admissible approaches. Therefore, upper bounds and lower bounds of the collapse loads are found for some problems: conical, spherical, ellipsoidal, torispherical shells etc. These numerical results are illustrated and compared with existing ones described in the literature and others provided from elastic-plastic analysis."]},{"key":"dc:title","label":"Title","values":["Elementos finitos para a análise limite de cascas axissimétricas via programação não-linear"]}]}],"canonical_facts":{"dc:contributor.advisor":["Ebecken, Nelson Francisco Favilla"],"dc:creator":["Fonseca Neto, João de Deus"],"dc:date.accessioned":["2018-01-02T15:43:58Z"],"dc:date.available":["2026-05-16T03:04:23Z"],"dc:date.issued":["1983-09"],"dc:description.abstract":["This work is concerned with rigid-plastic limit analysis of shells of revolution subject to rotationally symmetric loadings. These shells, of arbitrary shape, are discretized into a series of finite elements, each being a conical shell. The von Mises condition, valid for sandwich shells, is used. After assembling the finite elements, the limit analysis program is reduced to a simple application of the non-linear programming technique where the sequential unconstrained minimization technique (SUMT), the generalized reduced gradient method and the tolerance flexible method are utilized for statically admissible and kinematically admissible approaches. Therefore, upper bounds and lower bounds of the collapse loads are found for some problems: conical, spherical, ellipsoidal, torispherical shells etc. These numerical results are illustrated and compared with existing ones described in the literature and others provided from elastic-plastic analysis."],"dc:identifier.uri":["http://hdl.handle.net/11422/3372"],"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":["Engenharia Civil"],"dc:title":["Elementos finitos para a análise limite de cascas axissimétricas via programação não-linear"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:01Z"}