January 2017

Qualitative analysis of fatigue crack behavior in welded connection using acoustic emission technique

The study of fatigue crack behavior in welded structures using AE technique during crack initiation and propagation is discussed in this paper. This was achieved both theoretically and experimentally using four point bending testing. A new averaging index known as AE intensity was used to analyze the fatigue crack initiation conditions in the specimen. A theoretical model based on acoustic emission energy rate was...

Author(s): Y. Luo and A. Marfo