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Collapse of HSLA steel pipes under corrosion exposure and uniaxial inelastic cycling.

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Title: Collapse of HSLA steel pipes under corrosion exposure and uniaxial inelastic cycling.
Authors: Talebi, M.1 mtalebi@mail.kntu.ac.ir, Zeinoddini, M.1 zeinoddini@kntu.ac.ir, Mo'tamedi, M.1 m_motamedi@dena.kntu.ac.ir, Zandi, A.P.1 p.zandi@tazand.com
Source: Journal of Constructional Steel Research. May2018, Vol. 144, p253-269. 17p.
Subjects: Steel pipe corrosion, Structural failures, Deformations (Mechanics), Creep (Materials), Hydrocarbons
Abstract: High strength low alloy (HSLA) steel pipes such as API-X80 and beyond, have found increasing applications in deep offshore hydrocarbon development projects. The current paper reports the results of inelastic uniaxial cyclic creep and incremental collapse experiments on API X80 steel pipes at different accelerated corrosion exposure. Effects of parameters such as the exposure duration, corrosion morphology and loading conditions on the monotonic response, cyclic response, local deformation mode, number of cycles to failure and modes of failure were examined. The corrosion morphology as well as the deformations in the pipe specimens were recorded and monitored using non-contact 3D optical measurement techniques. In relative terms, the corrosion effects were much more pronounced under cyclic loading than monotonic loading. The rate of the cyclic creep and the number of cycles to failure were radically affected by the corrosion exposure. The corrosion morphology had, comparatively, smaller effects. Uncorroded specimens showed axisymmetric ductile modes of failure. The failure mode in corroded specimens was non-axisymmetric and also included a brittle low-cycle fatigue failure mode. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Constructional Steel Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 129207037
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Collapse of HSLA steel pipes under corrosion exposure and uniaxial inelastic cycling.
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  Data: <searchLink fieldCode="AR" term="%22Talebi%2C+M%2E%22">Talebi, M.</searchLink><relatesTo>1</relatesTo><i> mtalebi@mail.kntu.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Zeinoddini%2C+M%2E%22">Zeinoddini, M.</searchLink><relatesTo>1</relatesTo><i> zeinoddini@kntu.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Mo'tamedi%2C+M%2E%22">Mo'tamedi, M.</searchLink><relatesTo>1</relatesTo><i> m_motamedi@dena.kntu.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Zandi%2C+A%2EP%2E%22">Zandi, A.P.</searchLink><relatesTo>1</relatesTo><i> p.zandi@tazand.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Constructional+Steel+Research%22">Journal of Constructional Steel Research</searchLink>. May2018, Vol. 144, p253-269. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Steel+pipe+corrosion%22">Steel pipe corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+failures%22">Structural failures</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink>
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  Label: Abstract
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  Data: High strength low alloy (HSLA) steel pipes such as API-X80 and beyond, have found increasing applications in deep offshore hydrocarbon development projects. The current paper reports the results of inelastic uniaxial cyclic creep and incremental collapse experiments on API X80 steel pipes at different accelerated corrosion exposure. Effects of parameters such as the exposure duration, corrosion morphology and loading conditions on the monotonic response, cyclic response, local deformation mode, number of cycles to failure and modes of failure were examined. The corrosion morphology as well as the deformations in the pipe specimens were recorded and monitored using non-contact 3D optical measurement techniques. In relative terms, the corrosion effects were much more pronounced under cyclic loading than monotonic loading. The rate of the cyclic creep and the number of cycles to failure were radically affected by the corrosion exposure. The corrosion morphology had, comparatively, smaller effects. Uncorroded specimens showed axisymmetric ductile modes of failure. The failure mode in corroded specimens was non-axisymmetric and also included a brittle low-cycle fatigue failure mode. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Constructional Steel Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.jcsr.2018.02.003
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 253
    Subjects:
      – SubjectFull: Steel pipe corrosion
        Type: general
      – SubjectFull: Structural failures
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Creep (Materials)
        Type: general
      – SubjectFull: Hydrocarbons
        Type: general
    Titles:
      – TitleFull: Collapse of HSLA steel pipes under corrosion exposure and uniaxial inelastic cycling.
        Type: main
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            NameFull: Talebi, M.
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            NameFull: Zeinoddini, M.
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            NameFull: Mo'tamedi, M.
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            NameFull: Zandi, A.P.
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            – D: 01
              M: 05
              Text: May2018
              Type: published
              Y: 2018
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              Value: 144
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            – TitleFull: Journal of Constructional Steel Research
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