Application of acoustic emission monitoring to pressure tests of a steam receiver vessel with flawed nozzle welds.
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Date
1976-01
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Atomic Energy Commission
Abstract
As part of the first stage of an Australian Welding Research Association co-operative research project, acoustic emission monitoring has been applied to a steam receiver vessel withdrawn from service owing to severe weld cracking. This technique is used to check acceptance standards for defects in nozzle welds and to apply modern methods of assessing the integrity of pressurised plant. Acoustic emission monitoring has been used, together with strain gauge measurements and ultrasonic scanning, to detect the occurrence of any significant defect growth during cyclic pressurisation of the vessel. During this first stage, no significant defect growth has been produced by 1000 cycles of pressure up to 24.1 MPa (3500 psi), subsequent pressurisation up to 35.8 MPa (5200 psi), or 97 per cent of the expected yield stress of the vessel shell. The small amount of acoustic emission detected was consistent with this result.
Description
Keywords
Pressure vessels, Welded joints, Acoustic emission testing, Nozzles, Steam generators
Citation
Woodward, B., McDonald, N. R., & Hincksman, M. J. (1976). Application of acoustic emission monitoring to pressure tests of a steam receiver vessel with flawed nozzle welds (AAEC-E-371). Lucas Heights, NSW: Australian Atomic Energy Commission.