In the field of Ultrasonic Non Destructive Testing (US-NDT) applied to the defect investigation of aluminum bar for aerospace application, a number of solutions based on different signals generation, conditioning and data processing were proposed in literature. In this paper, a performance analysis of the US-NDT is proposed with the aim to obtain a suitable combination of such solutions that allow the best defect detection capability. The analysis was experimentally performed on two aluminum bars with two different cracks: the former generated by a fatigue process and the latter caused by a corrosive process. The results obtained with reference to different types of excitation signal and various methods of analyzing the acquired data are detailed
Ultrasonic non destructive testing on aluminium forged bars
Bernieri, A.;Ferrigno, L.;Laracca, M.;Rasile, A.;
2017-01-01
Abstract
In the field of Ultrasonic Non Destructive Testing (US-NDT) applied to the defect investigation of aluminum bar for aerospace application, a number of solutions based on different signals generation, conditioning and data processing were proposed in literature. In this paper, a performance analysis of the US-NDT is proposed with the aim to obtain a suitable combination of such solutions that allow the best defect detection capability. The analysis was experimentally performed on two aluminum bars with two different cracks: the former generated by a fatigue process and the latter caused by a corrosive process. The results obtained with reference to different types of excitation signal and various methods of analyzing the acquired data are detailedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
