Aplicação do M.E.F. na análise do colapso de tubulações submarinas para águas profundas

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.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1991

Author dc:creator

• Lima, Beatriz de Souza Leite Pires de

Advisor dc:contributor.advisor

• Ebecken, Nelson Francisco Favilla

• Engenharia Civil

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3980

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3980