{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3980"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3980","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Aplicação do M.E.F. na análise do colapso de tubulações submarinas para águas profundas","abstract":"This work presents developments on the numerical analysis and determination of collapse loads in deepwater pipelines, which are subjected to high external hydrostatic pressures. These pipelines present very small diameter-to-thickness ratios, thus requiring rigorous considerations on their analysis and design. The Finite Element Method (F.E.M.) is considered in these developments, where the pipeline is discretized using nonlinear isoparametric shell elements, which accounts for geometric and material nonlinearities. Plastification across the thickness is represented by using a layered model. The collapse analysis is performed through an incremental-iterative nonlinear analysis, based on the Newton-Raphson method, and also employing a special displacement-control technique.","abstract_html":"This work presents developments on the numerical analysis and determination of collapse loads in deepwater pipelines, which are subjected to high external hydrostatic pressures. These pipelines present very small diameter-to-thickness ratios, thus requiring rigorous considerations on their analysis and design. The Finite Element Method (F.E.M.) is considered in these developments, where the pipeline is discretized using nonlinear isoparametric shell elements, which accounts for geometric and material nonlinearities. Plastification across the thickness is represented by using a layered model. The collapse analysis is performed through an incremental-iterative nonlinear analysis, based on the Newton-Raphson method, and also employing a special displacement-control technique.","abstract_has_math":false,"creators":["Lima, Beatriz de Souza Leite Pires de"],"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":1991,"date_issued":"1991-04","date_published":"1991-04","updated_at":"2026-07-24T01:16:12Z","subjects":["Engenharia Civil"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3980","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":["Lima, Beatriz de Souza Leite Pires de"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-05-22T13:01:31Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:05:31Z"]},{"key":"dc:date.issued","label":"Date","values":["1991-04"]},{"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/11422/3980"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This work presents developments on the numerical analysis and determination of collapse loads in deepwater pipelines, which are subjected to high external hydrostatic pressures. These pipelines present very small diameter-to-thickness ratios, thus requiring rigorous considerations on their analysis and design. The Finite Element Method (F.E.M.) is considered in these developments, where the pipeline is discretized using nonlinear isoparametric shell elements, which accounts for geometric and material nonlinearities. Plastification across the thickness is represented by using a layered model. The collapse analysis is performed through an incremental-iterative nonlinear analysis, based on the Newton-Raphson method, and also employing a special displacement-control technique."]},{"key":"dc:title","label":"Title","values":["Aplicação do M.E.F. na análise do colapso de tubulações submarinas para águas profundas"]}]}],"canonical_facts":{"dc:contributor.advisor":["Ebecken, Nelson Francisco Favilla"],"dc:creator":["Lima, Beatriz de Souza Leite Pires de"],"dc:date.accessioned":["2018-05-22T13:01:31Z"],"dc:date.available":["2026-05-16T03:05:31Z"],"dc:date.issued":["1991-04"],"dc:description.abstract":["This work presents developments on the numerical analysis and determination of collapse loads in deepwater pipelines, which are subjected to high external hydrostatic pressures. These pipelines present very small diameter-to-thickness ratios, thus requiring rigorous considerations on their analysis and design. The Finite Element Method (F.E.M.) is considered in these developments, where the pipeline is discretized using nonlinear isoparametric shell elements, which accounts for geometric and material nonlinearities. Plastification across the thickness is represented by using a layered model. The collapse analysis is performed through an incremental-iterative nonlinear analysis, based on the Newton-Raphson method, and also employing a special displacement-control technique."],"dc:identifier.uri":["http://hdl.handle.net/11422/3980"],"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":["Aplicação do M.E.F. na análise do colapso de tubulações submarinas para águas profundas"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:12Z"}