After Fukushima Daiichi accident, nuclear power plants are required to ensure the system safety with long te rm operation. Present design code requires the assessment of CUF (cumulated usage factor) to prevent the occ rence of fatigue damage. However, it is difficult to introduce the concept of CUF into the system safety eva luation which needs probabilistic risk assessment. For the probabilistic evaluation of fatigue failure, thi s study intends to show the prediction of micro crack growth by simulation. ...
英字タイトル:
Approach to establish micro crack growth prediction model based on surface observations of fatigue test specimen