抄録
In this study, micro damage initiation and propagation behavior of woven fabric composite after fatigue loading was investigated. In order to detect the micro damage under static tensile loading, acoustic emission (AE) technique was employed. The AE generating stresses were defined as the initiation and propagation of the micro damage. In case of static loading, Kaiser effects were confirmed above the AE generating stress. After fatigue loading, the residual properties were same as virgin material in case that fatigue stresses were kept lower than the AE generating stress. On the other hand, the residual properties, especially the AE generating stress were drastically decreased at the higher fatigue stresses range.
