Micro crack propagation behavior using fractal dimension by AE Technique

Abstract

Crack growth analysis of ferrite by AE (Acoustic Emission) technique was analyzed. In the analysis, fractal dimensions were calculated using image processing and AE energy calculation techniques. According to the analysis of AE energy, the micro crack propagation strength generated in the material was analyzed. In the experiment, ferrite material was used and a fatigue experiment was conducted. As a result, crack damage occurred when a proportional relationship was observed in the AE parameter crack volume. By the presented study, it was found that AE nondestructive inspection which evaluated the micro crack propagation strength of material damage by AE energy analysis is possible to evaluate from the proposed image processing technique as well.