There have been many reports of fatigue failures of small-bore piping systems such as drain piping, vent piping and instrumentation piping in nuclear power plants that arise from vibration sources such as pumps. To prevent the failures, integrity ...
JOURNAL OF NUCLEAR ENGINEERING AND RADIATION SCIENCE 1(3) 2015年7月 [査読有り]
In nuclear power plants, vibration stress of piping is frequently measured to prevent the occurrence of fatigue failure. A simpler and more efficient measurement method is desired for rapid integrity evaluation of piping. In this study, a method t...
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 215 30-41 2015年1月 [査読有り]
An iterative substructure method has been proposed as a technique to calculate thermal elastic plastic problems quickly and efficiently. Based on the iterative substructure method, an analysis code for the multipass welding was developed so as to ...
The present paper proposes an efficient contactless measurement method for vibration stress of piping systems, by which the measurement tasks are performed within an extremely short time and the measured stress can be evaluated immediately after t...
In welding, material is heating locally. Therefore, it generates tensile residual stress in the heat affected zone and changes the quality of material. Those will be causes problem of stress corrosion cracking in SUS304. One of the conventional pr...
The present paper proposes an efficient contactless measurement method for vibration stress of piping systems, by which the measuring works are performed for an extreme short time and the measured stress can be evaluated immediately after the meas...
国際学部
工学部