| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
The self-monitoring capability of fiber-reinforced composite materials with carbon nanotube (CNT)-based thermosetting polymer adhesive layer was investigated both theoretically and experimentally, in order to improve their reliability and durability. Fracture and fatigue tests were conducted on carbon fiber-reinforced polymer (CFRP) composite laminates bonded using multi-walled nanotube/epoxy adhesives. Electrical resistance measurements were also performed during the tests, and the electrical resistance-crack behavior relationship and the effect of CNT addition on the fracture and fatigue properties of the composites were examined. In addition, an analytical model was developed to describe the electrical resistance change due to crack propagation and was validated by comparing the prediction results with the experimental data. The beneficial results for the development of high performance composite materials and structures were obtained through this study.
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