Fatigue crack analysis of ferrite material by acoustic emission technique

  • Md. T. I. Islam Khan Department of Advanced Technology Fusion, Saga University, 1 Honjo-machi, Saga 840-8502, Japan Phone: +81-952-28-8628, Fax: +81-952-28-8587
  • A. A. Rashid Department of Advanced Technology Fusion, Saga University, 1 Honjo-machi, Saga 840-8502, Japan Phone: +81-952-28-8628, Fax: +81-952-28-8587
  • R. Hidaka Department of Advanced Technology Fusion, Saga University, 1 Honjo-machi, Saga 840-8502, Japan Phone: +81-952-28-8628, Fax: +81-952-28-8587
  • N. Hattori Department of Mechanical Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
  • Md. M. Islam School of Mechanical and Electrical Engineering, University of Southern Queensland, West St, Toowoomba, QLD 4350, Australia
Keywords: Acoustic Emission, Acoustic Energy, Ferrite material, Fatigue Loading, Fractal Dimension, Image Processing

Abstract

Recently in various fields, numerous researches are going on for the assessment of material damage on the basis of crack initiation and propagation. Various methods are available in NDT for this purpose, among which analysis using released acoustic emission (AE) waves due to crack propagation is very effective due to its dynamic monitoring features. Various approaches are proposed for long time to make it an ideal method for accurate monitoring of crack behaviors in materials. In fragmentation theory there are some proportionality among the relations of AE event, AE energy, area and volume of cracks etc., which are calculated from the released AE waves from any dynamic crack. It has been found that the necessity of calculating the fractal dimension is important in verifying these relationships. This parameter is emphasized for determining the geometry of the irregularity in crack surface and crack volume. In this paper a novel approach based on image processing is proposed to find out the fractal dimension for analyzing the crack propagation characteristics. Finally, the proportionality relationships of AE parameters with crack propagation behavior in ferrite cast iron under fatigue loading are demonstrated experimentally.

Published
2019-06-28
How to Cite
Khan, M. T. I., Rashid, A. A., Hidaka, R., Hattori, N., & Islam, M. M. (2019). Fatigue crack analysis of ferrite material by acoustic emission technique. Journal of Mechanical Engineering and Sciences, 13(2), 5074 - 5089. https://doi.org/10.15282/jmes.13.2.2019.21.0418
Section
Article