NDLI: Impact of Yield to Ultimate Ratio on the Reliability of Burst Limit States

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Marc, A. Maes Mamdouh, M. Salama
Copyright Year	2006
Abstract	In order to reduce arctic construction and transportation costs, high strength steels (> X80) have been advocated for use in high pressure gas pipelines. These steels differ from conventional steels by exhibiting lower work hardening capacity, lower strain to failure and possible softening of their HAZ. These differences can impact burst limit state and tensile limit state, in addition to crack arrest. In this paper, the impact of the variations in mechanical properties on the reliability of several pipe limit states involving burst is examined. The paper presents the results of burst limit state analysis using state-of-the-art plastic burst models of strain hardening pipe and considering all the uncertainties that impact the margin of safety of pipes subject to internal pressure. Intact pipes, corroded pipes and externally damaged pipes are considered. The analysis focuses on different design check equations (DCE) which “control” the safe usage of the pipe. In addition, the paper looks at how external or internal damage or corrosion affects the burst capacity differently for medium versus high-strength pipelines steels.
Sponsorship	Pipeline Division
Starting Page	1033
Ending Page	1042
Page Count	10
File Format	PDF
ISBN	0791842630
DOI	10.1115/IPC2006-10323
Volume Number	Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B
Conference Proceedings	2006 International Pipeline Conference
Language	English
Publisher Date	2006-09-25
Publisher Place	Calgary, Alberta, Canada
Access Restriction	Subscribed
Subject Keyword	Pipeline reliability Pipeline damage High-strength steels Burst limit state Damage Reliability Steel Pipelines
Content Type	Text
Resource Type	Article

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