| Project/Area Number |
17K14573
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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 |
Production engineering/Processing studies
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| Research Institution | Kagoshima University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | CFRP / Filament Winding / Residual stress / Tensile stress / フィラメントワインディング / 熱硬化 / 成形加工 / 複合材料・物性 / 機械工作・生産工学 |
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| Outline of Final Research Achievements |
In CFRP manufacturing using the FW method, the effects of process factors (fiber tension, laminating speed and heating temperature) with in-situ heating method on the residual stress and strength of CFRP were evaluated.The fiber stress was calculated by a program using the FW lamination model that expresses the deformation of the fiber layer and the deformation due to heat hardening and cooling. In addition, a tensile strength test and residual stress measurement were performed, using cylindrical test pieces manufactured by FW method. It was found that the application of in-situ heating method reduces the residual stress and may improve the strength when the fiber tension is high.
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| Academic Significance and Societal Importance of the Research Achievements |
FW法を用いたCFRP の成形において，in-situ 加熱成形でのプロセス因子（繊維張力，積層速度および加熱温度）がCFRPの残留応力と強度に及ぼす影響を明らかにした．世界中で省エネルギー化が求められており，今後産業界において製品の軽量化や高強度化のためにCFRPの適用が増加することが見込まれることから，今回その製造パラメータが機械的特性に及ぼす影響の一端を示したことで，CFRPの適用を検討する際の一助となると考えられる．
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