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Conference papers
Characterization and modeling of ultrasonic structural noise in the multiple scattering regime
Abstract : Multiple scattering can occur when performing ultrasonic measurements on highly scattering materials such as coarse grain steel or concrete. It constitutes in general a limiting factor for NDE techniques. In this communication, a method to simulate the structural noise due to multiple scattering is described. It requires three parameters: the diffusion constant, the elastic mean free path and the correlation distance. A method to obtain these parameters based on a single measurement procedure is presented. This approach has been applied to samples of coarse grain steel. The backscattered noise has been calculated for different probes and compared to experimental signals.
https://hal-cea.archives-ouvertes.fr/cea-01828194
Contributor : Léna Le Roy Connect in order to contact the contributor
Submitted on : Tuesday, July 3, 2018 - 9:36:15 AM
Last modification on : Tuesday, September 28, 2021 - 5:13:18 PM
Contributor : Léna Le Roy Connect in order to contact the contributor
Submitted on : Tuesday, July 3, 2018 - 9:36:15 AM
Last modification on : Tuesday, September 28, 2021 - 5:13:18 PM