| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
We are now facing an urgent issue how to maintain the security and reliability in large construnctions, energy plants, transportation viecles, industrial machinery, and so on. In our research group, the visualization system using ultrasonic waves for nondestructive evaluation has been proposed and the effectiveness of this system has been demonstrated. The visualization of scattered waves from the defectes/damges facilitates the judgement in nondestructive evaluation. This research targets to establish the technology that can grasp the defects more precisely. Moreover, further expansion for application scope is also investigated. In addition, the nondestructive evaluation method using microwaves is considered, because this method can instantaneously detect the defects for very long metal tubes. Finally, the mock-ups (specimens) are fabricated and tested. The good agreements between calculated and measured results were confirmed and the validity of this research was certified.
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