Ultrasonic nondestructive testing for surface-breaking crack on steel plates using leaky Lamb waves
| Project/Area Number |
23760427
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Okayama University |
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Principal Investigator |
KIMOTO Kazushi 岡山大学, 大学院・環境生命科学研究科, 准教授 (30323827)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 超音波探傷 / 非破壊検査 / 逆解析 / ガイド波 / 漏洩波 / 超音波 |
|---|
| Research Abstract |
This study is concerned with a development of ultrasonic non-destructive method for characterization of surface-breaking cracks on a steel plate using leaky Lamb waves, which is a kind of acoustic waves generated by guided-waves traveling in a fluid-loaded solid. To begin with, a simulation code was developed to analyze generation and propagation mechanisms of the leaky waves. A numerical inverse technique to identify surface-breaking crack was then proposed in conjunction with a guided wave mode-separation technique. Finally, a high-precision and resolution leaky wave measurement system was developed for future experimental validation of the proposed technique
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Report
(3 results)
Research Products
(10 results)
