Abstract Ultrasonic testing (UT) is the most appropriate non-destructive testing because of capabilities for detection and depth sizing of flaw. But it is generally said that the flaw detection in austenitic weld is difficult because of dispersion and attenuation of the ultrasonic wave.UT simulation is a very useful technique for understanding the phenomena in the propagation of ultrasonic wave and for evaluating the UT results.On UT simulation for weld used austenitic welding material, modeling of co...
英字タイトル:
UT simulation of dissimilar metal weld joint utilizing solidification simulation technique

As one of plans to improve a skill of UT inspector, a methodo utilize ultrasonic waves predicted by UT simulation is su ggested. Therefore, modeling methods of metal microstructurebased on solidification simulation and the actual flaw dete ction conditions were developed, and UT simulation is carried out using the models. The validity in the simulation model is verified compared with experimental results. A method to apply simulation results to UT skill training is suggested....
英字タイトル:
Application of FEM simulation for UT skill training

In ultrasonic testing for austenitic welds, it is generally said that the flaw detection in the weld is difficult because of spurious echoes by dispersion of the ultrasonic wave. Therefore, the ultrasonic examination personnel are required to have high level abilities to classify these echoes. It is important to train to maintain and improve the abilities. For the effective training, many samples are need with a variety of flaw characteristics and size. However, it is difficult to prepare such samples...
英字タイトル:
Defect Model in TU simulation for UT training tool