2011 Fiscal Year Final Research Report
Self-damage detection composite structure using thermal deformation caused by Joule heating
| Project/Area Number |
21560079
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TODOROKI Akira 東京工業大学, 大学院・理工学研究科, 教授 (50211397)
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| Co-Investigator(Kenkyū-buntansha) |
MIZUTANI Yoshihiro 東京工業大学, 大学院・理工学研究科, 准教授 (40337879)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 破壊 / 複合材料 / CFRP / 層間はく離 / 電気抵抗 |
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| Research Abstract |
Self-sensing method is focused on here. In the present study, statistical monitoring method is applied for the electrical resistance changes of several segments before and after the Joule heating. After Joule heating, electrical resistances of several segments are measured. Using the statistical similarity tests, the damaged area of the CFRP is detected. The method is applied to the CFRP plates here. Impact load tests were performed and damage at the electrode was also performed here. The method is experimentally proved to be effective for the detection of the delamination cracks.
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