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
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