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Acoustic emission testing and structural evaluation of seamless, steel tubes in compressed gas service

Journal Article · · J. Pressure Vessel Technol.; (United States)
DOI:https://doi.org/10.1115/1.3264774· OSTI ID:5582125

Tube trailers are used in the distribution of industrial gases. The tubes, which are of seamless steel, measure 22-in. diameter, about 1/2-in. wall, and 34 ft long. The U.S. Department of Transportation mandates periodic re-tests of tubes every 5 yr. Acoustic emission re-tests have been substituted for hydrostatic re-tests. This paper presents an analysis of flaws using fracture mechanics methods and establishes a maximum allowable flaw depth. It describes the acoustic emission test method and presents some typical results. Also, some discussion of the hydrostatic re-test is included.

Research Organization:
Linde Div., Union Carbide Corp., Tonawanda, NY 14151
OSTI ID:
5582125
Journal Information:
J. Pressure Vessel Technol.; (United States), Journal Name: J. Pressure Vessel Technol.; (United States) Vol. 108:2; ISSN JPVTA
Country of Publication:
United States
Language:
English