Pregled bibliografske jedinice broj: 652931
Advantages Of Ultrasonic Diffraction Technique In Estimating The Remaining Life Of Critical Components In Mechanical Engineering
Advantages Of Ultrasonic Diffraction Technique In Estimating The Remaining Life Of Critical Components In Mechanical Engineering // Conference Proceedings: Ljubljana: Faculty of Mechanical Engineering, Slovenian Society for Nondestructive Testing, "Application of Contemporary Nondestructive Testing in Engineering", Ljubljana, Slovenija 24 - 25 April 1997
Ljubljana, Slovenija, 1997. str. 41-50 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Advantages Of Ultrasonic Diffraction Technique In Estimating The Remaining Life Of Critical Components In Mechanical Engineering
Autori
Dukić, Ines ; Dukić, Predrag
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Conference Proceedings: Ljubljana: Faculty of Mechanical Engineering, Slovenian Society for Nondestructive Testing, "Application of Contemporary Nondestructive Testing in Engineering", Ljubljana, Slovenija 24 - 25 April 1997
/ - , 1997, 41-50
ISBN
961-6238-04-3
Skup
4th International Conference of the Slovenian Society for Nondestructive Testing, "Application of Contemporary Nondestructive Testing in Engineering", Ljubljana, Slovenija 24 - 25 April 1997
Mjesto i datum
Ljubljana, Slovenija, 24.04.1997. - 25.04.1997
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
ultrazvočna difrakcija (TOFD)
(time of flight diffraction)
Sažetak
Vital components of power plants (rotors, shrunk-on discs, retaining rings, casings etc.) are exposed to very hard working conditions what causes crack initiation and their sometimes very rapid growth. Estimating of remaining life, what includes in service inspection (ISI) of these components, requires accurate sizing of flaws, because of calculating crack propagation and/or crack propagation monitoring. In both cases it is important to size cracks with accuracy less than 1 mm. Technique justified as superior for sizing the defects is called Time of Flight Diffraction (TOFD). It can be performed manually, with standard ultrasonic equipment, observing changes in A scan, but to achieve its full effectiveness and accuracy, it is necessary to have adequate equipment to obtain B or D scan of unrectified signals. This paper describes the principles and abilities of TOFD technique, as well as comparison between results obtained by standard and sophisticated equipment on some laboratory samples as well as on generator retaining ring.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
