The prediction of fretting fatigue in the pressure armours of dynamic flexible pipes

Sinead O'Halloran, Annette Harte, Adrian Connaire, Sean Leen

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

2 Citations (Scopus)

Abstract

This paper presents a combined experimental and computational framework for the design of flexible marine risers against fretting and fatigue. The framework is based on: (i) a suite of laboratory experimental methods for fretting and fatigue tests, and (ii) a global-local methodology for flexible riser analysis including dynamics and frictional contact mechanics. The effect of coefficient of friction on the predicted substrate stress distributions and fatigue life of the nub-groove region of flexibles has been investigated. It is shown that coefficient of friction has a significant effect on predicted trailing-edge tensile stresses in the pressure armour layer and, hence on fretting crack initiation in risers. The framework should assist in the design of pressure armour layers in flexible marine risers against fretting wear and fatigue.

Original languageEnglish
Title of host publicationOffshore Technology Conference 2016, OTC 2016
PublisherOffshore Technology Conference
Pages1383-1394
Number of pages12
ISBN (Electronic)9781510824294
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventOffshore Technology Conference 2016, OTC 2016 - Houston, United States
Duration: 2 May 20165 May 2016

Publication series

NameProceedings of the Annual Offshore Technology Conference
Volume2
ISSN (Print)0160-3663

Conference

ConferenceOffshore Technology Conference 2016, OTC 2016
Country/TerritoryUnited States
CityHouston
Period2/05/165/05/16

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