The ultrasonic techniques of flaws detection and evaluation usually rely on linear models. High mechanical stress generates non-linear phenomena. Models suited to fit the input-output characteristics and the existence of non-linear behaviors, if any, allow improved sensitivity and early detection of the onset of cracks. We propose a technique of nonlinear characterization of the response, adequate for a real time industrial implementation.
Harmonic Distortion Estimate for Damage Detection
Laureti S.;Ricci M.
2018-01-01
Abstract
The ultrasonic techniques of flaws detection and evaluation usually rely on linear models. High mechanical stress generates non-linear phenomena. Models suited to fit the input-output characteristics and the existence of non-linear behaviors, if any, allow improved sensitivity and early detection of the onset of cracks. We propose a technique of nonlinear characterization of the response, adequate for a real time industrial implementation.File in questo prodotto:
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