eprintid: 2155
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/21/55
datestamp: 2023-11-09 15:50:21
lastmod: 2023-11-09 15:50:21
status_changed: 2023-11-09 15:42:08
type: article
metadata_visibility: show
creators_name: Mokhtar, A.A.
creators_name: Ismail, M.C.
title: Probabilistic reliability assessment of an insulated piping in the presence of corrosion defects
ispublished: pub
note: cited By 8
abstract: Corrosion Under Insulation (CUE) is found to be a major problem for insulated pipes as it becomes even worse as the pipes age increases. Gradual metal loss due to CUE may cause the pipe to leak or in the worst scenario, the pipe may rupture. The presence of small leak or rupture in lines may lead to a hazardous situation since the piping systems carry hydrocarbons or other process fluids. Hence, a proper inspection and maintenance program of these piping systems is crucial to maintain a safe and continuous operation. Corrosion and inspection engineers mostly are confronted with the problem of optimizing the inspection schedule for insulated piping systems due to the fact that most inspection/maintenance optimization models are based on the reliability models to predict the failure probability of the system. However, no reliability model was found within the literature that has currently been applied to insulated piping systems. This study presents a methodology for the estimation of the reliability of insulated piping systems containing corrosion defects. A probabilistic approach is adopted to this methodology and the associated variables are represented by normal probability distributions. First-order reliability method is employed for carrying out the reliability analysis due to the presence of nonlinearity in the limit-state function and also in the possible presence of non-normal variables. The methodology is applied to a real case study and the remaining useful life of the insulated pipe is assessed.
date: 2011
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79955552881&doi=10.3923%2fjas.2011.2063.2067&partnerID=40&md5=4fefb193bb8668035652a5e0dfc1dc6d
id_number: 10.3923/jas.2011.2063.2067
full_text_status: none
publication: Journal of Applied Sciences
volume: 11
number: 11
pagerange: 2063-2067
refereed: TRUE
issn: 18125654
citation:   Mokhtar, A.A. and Ismail, M.C.  (2011) Probabilistic reliability assessment of an insulated piping in the presence of corrosion defects.  Journal of Applied Sciences, 11 (11).  pp. 2063-2067.  ISSN 18125654