Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.

Detalhes bibliográficos
Autor(a) principal: Santos, Caio César Pereira
Data de Publicação: 2019
Tipo de documento: Tese
Idioma: eng
Título da fonte: Biblioteca Digital de Teses e Dissertações da USP
Texto Completo: http://www.teses.usp.br/teses/disponiveis/3/3152/tde-06052019-142028/
Resumo: The Finite Element Method is a powerful and widespread tool for the structural analysis of flexible pipes and umbilicals. However, it is unfeasible to represent in detail all layers and components of a flexible pipe or umbilical cable in a Finite Element (FE) model, since the calculation time would be unrealistic. Moreover, consistent numerical analysis requires support from experimental results. In this context, this thesis presents numerical and experimental research options, as well as the development of new strategies for the design of FE models of flexible pipes and umbilicals. Using the commercial FE software ABAQUS, the text highlights the development of innovative techniques to represent helical layers, as well as the concept of a two-dimensional FE analysis, supported by analytical formulation. Complementing the numerical approaches, pioneer experimental techniques herein developed are presented, based on optical instrumentation through a Digital Image Correlation (DIC) system. An unconventional use of the DIC system enables the development of an experimental methodology to study umbilicals under crushing loads.
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spelling Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.Análise estrutural de tubos flexíveis e cabos umbilicais: uma técnica de modelagem bimaterial em elementos finitos e uma abordagem experimental inovadora usando sistema de correlação de imagem digital.Cabos umbilicaisDigital Image Correlation (DIC)Finite Element Method (FEM)Flexible pipesMétodo dos Elementos FinitosStructural analysisTubos flexíveisUmbilical cablesThe Finite Element Method is a powerful and widespread tool for the structural analysis of flexible pipes and umbilicals. However, it is unfeasible to represent in detail all layers and components of a flexible pipe or umbilical cable in a Finite Element (FE) model, since the calculation time would be unrealistic. Moreover, consistent numerical analysis requires support from experimental results. In this context, this thesis presents numerical and experimental research options, as well as the development of new strategies for the design of FE models of flexible pipes and umbilicals. Using the commercial FE software ABAQUS, the text highlights the development of innovative techniques to represent helical layers, as well as the concept of a two-dimensional FE analysis, supported by analytical formulation. Complementing the numerical approaches, pioneer experimental techniques herein developed are presented, based on optical instrumentation through a Digital Image Correlation (DIC) system. An unconventional use of the DIC system enables the development of an experimental methodology to study umbilicals under crushing loads.Na análise estrutural de tubos flexíveis e cabos umbilicais, o Método de Elementos Finitos se destaca como uma ferramenta poderosa e bastante difundida. Contudo, é inviável representar em modelos baseados em Elementos Finitos (EF) um tubo flexível ou um cabo umbilical com toda sua riqueza de detalhes, pois os tempos de cálculo seriam irreais. Além disso, análises numéricas consistentes precisam de respaldo de resultados experimentais. Neste contexto, esta tese apresenta linhas de pesquisa numérica e experimental. O desenvolvimento de novas estratégias para a concepção de modelos em EF de tubos flexíveis e cabos umbilicais é apresentado. Utilizando o software comercial ABAQUS, destacam-se técnicas inovadoras para representação das camadas helicoidais, bem como a obtenção de modelos EF bidimensionais, amparados por formulação analítica. Complementando as abordagens numéricas, técnicas pioneiras de análise experimental são apresentadas, baseando-se em instrumentação óptica com sistema de correlação digital de imagens. Utilizado de forma não convencional, o monitoramento óptico permite o desenvolvimento de metodologia experimental para estudo de cabos umbilicais sob carregamentos de crushing.Biblioteca Digitais de Teses e Dissertações da USPPesce, Celso PupoSantos, Caio César Pereira2019-02-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://www.teses.usp.br/teses/disponiveis/3/3152/tde-06052019-142028/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesseng2019-06-07T17:42:52Zoai:teses.usp.br:tde-06052019-142028Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212019-06-07T17:42:52Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
Análise estrutural de tubos flexíveis e cabos umbilicais: uma técnica de modelagem bimaterial em elementos finitos e uma abordagem experimental inovadora usando sistema de correlação de imagem digital.
title Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
spellingShingle Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
Santos, Caio César Pereira
Cabos umbilicais
Digital Image Correlation (DIC)
Finite Element Method (FEM)
Flexible pipes
Método dos Elementos Finitos
Structural analysis
Tubos flexíveis
Umbilical cables
title_short Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
title_full Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
title_fullStr Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
title_full_unstemmed Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
title_sort Structural analysis of flexible pipes and umbilical cables: a bimaterial finite element modeling technique and a novel experimental approach using a digital image correlation system.
author Santos, Caio César Pereira
author_facet Santos, Caio César Pereira
author_role author
dc.contributor.none.fl_str_mv Pesce, Celso Pupo
dc.contributor.author.fl_str_mv Santos, Caio César Pereira
dc.subject.por.fl_str_mv Cabos umbilicais
Digital Image Correlation (DIC)
Finite Element Method (FEM)
Flexible pipes
Método dos Elementos Finitos
Structural analysis
Tubos flexíveis
Umbilical cables
topic Cabos umbilicais
Digital Image Correlation (DIC)
Finite Element Method (FEM)
Flexible pipes
Método dos Elementos Finitos
Structural analysis
Tubos flexíveis
Umbilical cables
description The Finite Element Method is a powerful and widespread tool for the structural analysis of flexible pipes and umbilicals. However, it is unfeasible to represent in detail all layers and components of a flexible pipe or umbilical cable in a Finite Element (FE) model, since the calculation time would be unrealistic. Moreover, consistent numerical analysis requires support from experimental results. In this context, this thesis presents numerical and experimental research options, as well as the development of new strategies for the design of FE models of flexible pipes and umbilicals. Using the commercial FE software ABAQUS, the text highlights the development of innovative techniques to represent helical layers, as well as the concept of a two-dimensional FE analysis, supported by analytical formulation. Complementing the numerical approaches, pioneer experimental techniques herein developed are presented, based on optical instrumentation through a Digital Image Correlation (DIC) system. An unconventional use of the DIC system enables the development of an experimental methodology to study umbilicals under crushing loads.
publishDate 2019
dc.date.none.fl_str_mv 2019-02-12
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.teses.usp.br/teses/disponiveis/3/3152/tde-06052019-142028/
url http://www.teses.usp.br/teses/disponiveis/3/3152/tde-06052019-142028/
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv
dc.rights.driver.fl_str_mv Liberar o conteúdo para acesso público.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Liberar o conteúdo para acesso público.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv
dc.publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
dc.source.none.fl_str_mv
reponame:Biblioteca Digital de Teses e Dissertações da USP
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Biblioteca Digital de Teses e Dissertações da USP
collection Biblioteca Digital de Teses e Dissertações da USP
repository.name.fl_str_mv Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)
repository.mail.fl_str_mv virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br
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