Uncertainty analyses for calculated failure probabilities of piping welds

M. A. Khaleel, F. A. Simonen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

The objective of this paper is to quantify the uncertainties associated with inputs to probabilistic fracture mechanics calculations and with the resulting uncertainties in the calculated values of piping failure probabilities. All calculations used the pc-PRAISE computer code to address both leak and break probabilities. The first step was a sensitivity study which identified the uncertainties that have the greatest effect on the pc-PRAISE results. The second step was a quantitative uncertainty analysis that addressed the most critical parameters so identified. The failure mechanisms addressed were mechanical and thermal fatigue of stainless steel piping due to the presence of fabrication defects. Distributions of calculated failure probabilities are summarized in a format usable as input to higher level uncertainty analyses that combine the uncertainties in failure probabilities with uncertainties from probabilistic risk assessments that address the consequences of piping failures.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
PublisherASME
Pages77-90
Number of pages14
Volume383
Publication statusPublished - 1999
Externally publishedYes
EventPressure Vessel and Piping Codes and Standards - 1999 (The ASME Pressure Vessels and Piping Conference) - Boston, MA, USA
Duration: 1 Aug 19995 Aug 1999

Other

OtherPressure Vessel and Piping Codes and Standards - 1999 (The ASME Pressure Vessels and Piping Conference)
CityBoston, MA, USA
Period1/8/995/8/99

Fingerprint

Welds
Thermal fatigue
Uncertainty analysis
Fracture mechanics
Risk assessment
Uncertainty
Stainless steel
Fabrication
Defects

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

Khaleel, M. A., & Simonen, F. A. (1999). Uncertainty analyses for calculated failure probabilities of piping welds. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (Vol. 383, pp. 77-90). ASME.

Uncertainty analyses for calculated failure probabilities of piping welds. / Khaleel, M. A.; Simonen, F. A.

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 383 ASME, 1999. p. 77-90.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Khaleel, MA & Simonen, FA 1999, Uncertainty analyses for calculated failure probabilities of piping welds. in American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. vol. 383, ASME, pp. 77-90, Pressure Vessel and Piping Codes and Standards - 1999 (The ASME Pressure Vessels and Piping Conference), Boston, MA, USA, 1/8/99.
Khaleel MA, Simonen FA. Uncertainty analyses for calculated failure probabilities of piping welds. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 383. ASME. 1999. p. 77-90
Khaleel, M. A. ; Simonen, F. A. / Uncertainty analyses for calculated failure probabilities of piping welds. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 383 ASME, 1999. pp. 77-90
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