Determining the probability of detecting flaws in weld joints by phased-array ultrasonic testing
- Авторлар: Pilyugin S.O.1, Lunin V.P.1
- 
							Мекемелер: 
							- Moscow Power Engineering Institute
 
- Шығарылым: Том 52, № 6 (2016)
- Беттер: 332-338
- Бөлім: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/181150
- DOI: https://doi.org/10.1134/S1061830916060085
- ID: 181150
Дәйексөз келтіру
Аннотация
The article is devoted to ultrasonic testing of weld joints in aerospace industry with an acoustic phased array. Testing planar flaws of lack-of-fusion and joint-root-crack types by sector scanning is considered. A technique is suggested for calculating the probability of detecting flaws (POD) by means of numerical modeling of the ultrasonic-testing procedure with allowance for interferences. A finite-element model has been developed, and 40 cracks with randomly generated geometry have been modeled. Using the modeling results, a conditional crack height at a level of 10% of the echosignal amplitude from a reference reflector has been determined. POD curves have been calculated using the results of numerical experiments.
Авторлар туралы
S. Pilyugin
Moscow Power Engineering Institute
							Хат алмасуға жауапты Автор.
							Email: sopilyugin@gmail.ru
				                					                																			                												                	Ресей, 							Moscow, 111250						
V. Lunin
Moscow Power Engineering Institute
														Email: sopilyugin@gmail.ru
				                					                																			                												                	Ресей, 							Moscow, 111250						
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