Jahan Taghizadeh - Assis. Prof., Mechanical Engineering Faculty, Qom University of Technology, Qom, Iran P. O. B. ۳۷۱۹۵-۱۵۱۹ Qom

The fatigue crack growth characteristics of structural epoxyL160 are analyzed using quantitative acoustic emission (AE) technique. This was experimentally investigated by three-point bending testing of specimens under low cycle constant amplitude loading using the Fuzzy clustering Means. The crack growth sequence, that is, initiation, crack propagation, and fracture, is extracted from their corresponding frequency feature bands, respectively. The results obtained proved to be superior to qualitative AE analysis and the traditional linear elastic fracture mechanics for fatigue crack characterization in structural epoxyL160

EpoxyL160; Acoustic Emission; Fuzzy clustering Means; Fatigue,