NDLI: Reliability Based Design and Assessment for Location-Specific Failure Threats With Application to Natural Gas Pipelines

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Nessim, Maher Zhou, Wenxing Zhou, Joe Rothwell, Brian
Copyright Year	2006
Abstract	The acceptance criteria used in Reliability Based Design and Assessment (RBDA) are defined as a set of reliability targets (where reliability is defined as 1.0 minus the probability of failure). Because of the linear nature of pipeline systems, reliability targets are defined on a per km-year basis. Such targets are directly applicable to failure causes (or limit states) that are equally likely to occur anywhere along a segment of the pipeline (e.g. equipment impact or yielding/rupture of defect-free pipe under internal pressure). They are, however, not directly applicable for design and assessment situations involving limit states that apply at known specific locations. Examples include design for geotechnical loads on a particular unstable slope or integrity assessment of specific corrosion defects based on in-line inspection data. In previous work, reliability targets for natural gas pipelines have been developed on the basis of appropriate societal and individual risk criteria. This paper describes an approach to adapt these targets, and demonstrate compliance with them, for location-specific limit states. The approach is based on using separate checks to ensure that the individual and societal risk criteria underlying the targets are met. An example is included to demonstrate application of the approach to design a pipeline on an unstable slope.
Sponsorship	Pipeline Division
Starting Page	951
Ending Page	956
Page Count	6
File Format	PDF
ISBN	0791842630
DOI	10.1115/IPC2006-10097
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	Pipelines Rupture Inspection Probability Natural gas distribution Risk Pressure Stress Design Corrosion Pipeline systems Reliability Acceptance criteria Pipes Failure
Content Type	Text
Resource Type	Article

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