The specific features of acoustic-emission testing of vessel equipment with a wall delamination of a technological origin

• Published in: Russian journal of nondestructive testing Vol. 51; no. 5; pp. 280 - 291
• Main Authors: Rastegaev, I. A., Chugunov, A. V., Vinogradov, A. Yu, Merson, D. L., Danyuk, A. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-05-2015
• Subjects: Acoustic Methods; Acoustics; Boundaries; Characterization and Evaluation of Materials; Chemistry and Materials Science; Delaminating; Delamination; Materials Science; Mathematical analysis; Origins; Structural Materials; Vessels; Walls; wall delamination; engineering diagnostics; nondestructive testing; acoustic emission; vessel equipment
• ISSN: 1061-8309; 1608-3385
• DOI: 10.1134/S1061830915050071

Acoustic-emission (AE) signals from the zones of delaminations in vessel walls of technological origin are analyzed via comparison to data that were obtained by the ultrasonic method and strength calculations. The boundaries of the detectability of a delamination-type flaw using the AE technique are established in accordance with the regulatory engineering documentation that is in force. A method for determining the dimensions, location depth, and opening width of a delamination using AE data and simple calculated dependences, which are applicable under testing conditions, is proposed.