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Fitness for service applications in LNG plants

Book ·
OSTI ID:176072
; ;  [1];  [2]
  1. Mobil Research and Development Corp., Princeton, NJ (United States)
  2. Edison Welding Inst., Columbus, OH (United States)
Fitness-for-service assessments can provide information regarding operational reliability of equipment. However, to be meaningful, such assessments require an analytical procedure to determine the ability of engineering structures to tolerate the presence of weld flaws. In recent years, there has been a significant interest in this technology by the refining and petrochemical industries for predicting and avoiding fracture in pressurized components. Most applications have covered pressure vessel and piping where carbon and low alloy steels are the traditional materials of construction. More recently, fitness for service questions have developed for equipment with highly ductile materials such as aluminum alloys. In order to handle these questions ductile tearing resistance must be considered and R curve methods are required. In this paper examples are cited where fitness for service assessments were required for an aluminum heat exchanger in LNG service. Suitable R curve data were developed in order to establish flaw tolerance following UT inspections of this equipment.
OSTI ID:
176072
Report Number(s):
CONF-950740--; ISBN 0-7918-1346-0
Country of Publication:
United States
Language:
English

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