Crack Propagation Analysis in Ductile Cast Iron by Acoustic Emission Technique

Recently immense studies are going on for the assessment of materials on the basis of crack initiation and propagation for industrial and biomedical purposes. Among NDT, analysis using acoustic emission (AE) wave released due to crack formation and propagation is very effective according to recent investigation. Study of cracks by determining the AE energy and maximum amplitude by processing the received AE signals are presented in this paper on two types of ductile cast iron under fatigue loading. Thus the AE signal processing characterizes the crack propagation on structural materials clearly.