Título: | INFLUENCE OF ANODE PAD INSTALLATION OVER THE BUCKLING OF PIPES SUBJECTED TO REELING | |||||||
Autor: |
CARLOS ROBERTO CHARNAUX |
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Colaborador(es): |
JOSE LUIZ DE FRANCA FREIRE - Orientador IVAN CARLOS PIMENTEL DA CRUZ - Coorientador |
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Catalogação: | 03/SET/2008 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | |||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=12152&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=12152&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.12152 | |||||||
Resumo: | ||||||||
One of the main steel pipelines offshore installation
methods is the reeling, which subject the pipes to bending
loads that produces plastic strains. The cathodic
protection process of these rigid pipelines demands the
installation of a determined quantity of anodes for the
corrosion protection. The anodes contact with the pipes is
established through anode pads. These pads create
geometrical imperfections at pipe wall thickness, resulting
in strain concentration areas during the reeling process at
installation vessels. This dissertation proposes
to understand and quantify the pads installation effects
with reference to the introduction of strain concentrations
and its influence on the pipe buckling strength during the
reeling process. The pipe buckling failure study during the
reeling process requires the evaluation of longitudinal
strains for the comparison with the standards defined
criteria. This evaluation proposes the use of analytical
and numerical calculation methods. From the developed
study, it was possible to propose a flow chart for the
evaluation of pipes with anode pads. From this, it was
possible to define a newer strain limit value, in the event
of a simplified reeling analysis is not in agreement with
the standards proposed criteria. Considering that
anode pads study is only one example to represent the
strain concentration elements during reeling process, the
herein presented methodology can be applied to other types
of parts attached to the pipelines, for the evaluation of
buckling failures.
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