Acoustic emission pattern recognition approach based on Hilbert-Huang transform for in situ structural health monitoring in polymer-composite materials

by Seif Eddine Hamdi, Alain Le Duff, Laurent Simon, Guy Plantier, Anthony Sourice, Mathieu Feuilloy
Abstract:
One of the most important difficulties faced by in situ structural health monitoring approaches when establishing a relationship between a specific damage mechanism and its acoustic signature is the lack of an appropriate signal processing method able to deal with the non-stationary acoustic signals. The purpose of this paper is to use the Hilbert