Cilindro espesso curvo submetido a carregamentos combinados no plano de momento fletor, força normal e força cisalhante

• Ano de defesa: 2017
• Autor(a) principal: Barbosa, Marcelo Luiz Ligeiro
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Oceânica; UFRJ
• Palavras-chave em Português: Engenharia oceânica; Cilindro espesso curvo; Deformação plástica; CNPQ::ENGENHARIAS::ENGENHARIA NAVAL E OCEANICA
• Link de acesso: http://hdl.handle.net/11422/7465

Thick-walled curved cylinder, most used in oil and gas industry, is one of the most important component of the connector used to make and maintain a connection between flexible flowlines and subsea equipment. However, there is no a standard acceptance criteria for evaluation excessive yielding caused by the loads imposed by flexible flowlines in the curved cylinder component of the connector. The objective of this study is to evaluate the thick-walled curved cylinder behavior under combined tension, shear and bending loads imposed by flexible flowlines in order to establish an acceptance criterion for plastic deformation. The behavior was evaluated by numerical analysis using the finite element method. In this study, loads that caused excessive plastic deformations as well as structural stability lost were identified and an acceptance criterion for plastic deformations was defined.