Development of trifunctional self-sensing structural capacitor
| Project/Area Number |
15K05673
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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 |
Materials/Mechanics of materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 複合材料 / 構造キャパシタ / ３Ｄプリンタ / 自己センシング / CFRP / 電気抵抗変化 / 繊維破断 / ＣＦＲＰ / キャパシタ / 電気抵抗 / 破壊 / モニタリング / サンドイッチ構造 / 複合材 / 炭素繊維 / 電気二重層 |
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| Outline of Final Research Achievements |
Application of expensive carbon fiber reinforced composites to general structures requires an additional function such as structural capacitor. In this study, we proposed a sandwich structure capacitor that incorporates a capacitor in the core part of the sandwich structure. Since foam core brings leakage of electrolyte, we decided to use a snap-in structure created with a 3D printer. The capacitance target was achieved by installing a waterproofed capacitor inside the snap-in core. 3-point bending tests were conducted to confirm that the stiffness was sufficient. By measuring the electric resistance of the carbon fiber of the skin material, it was possible to detect the breakage just before the breakage and confirmed that it was possible to discharge.
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| Academic Significance and Societal Importance of the Research Achievements |
軽量で高い剛性を持つが高価な炭素繊維複合材を一般構造に適用するため，構造以外の機能として蓄電機能を有する機能複合材料構造を作成した．本研究では，サンドイッチ構造の中央部分に蓄電機能を設置して構造の剛性と強度を持たせる．３Ｄプリンタを用いて雄雌型の嵌め込み形式を表皮材に同時成形し，簡単に組み立て可能なスナップイン構造とした．炭素繊維の電気抵抗変化を測定して事前に破壊を検知できる．このような構造と蓄電と破壊検知の多機能を有している構造は電気自動車などに利用可能であり，今後の省エネに寄与すると判断される．
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Report
(5 results)
Research Products
(1 results)
