2013 Fiscal Year Final Research Report
Damage visualization with AE tomography using AE sources from damage areas in infrastructures
| Project/Area Number |
23560567
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | アコースティック・エミッション / トモグラフィ / 劣化診断 / AEトモグラフィ / 定量的損傷評価 / 予防保全 / アセットマネジメント |
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| Research Abstract |
The researcher in charge of this project had proposed the AE tomography (AET) technique, combining the AE method and the Tomography technique. In the AET, two principal concepts had been introduced: the improvement of AE source location technique and the estimation technique of velocity distribution based on the AE sources. Then in consideration with these two principals two-dimensional AE tomography program has been established. And the AET has been applied RC plate fracture tests in laboratory, followed by the in-situ investigation of deteriorated concrete deck of high speed railway. Through these applications it was clarified that AET had a great potential to reasonably visualize the damage in the materials or structures. In the next step, the program will be improved to be able to implement 3-dimensional applications. And further modification will be made to correspond to plate structures having velocity dispersion.
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