| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Braid-press forming was developed for manufacturing hollow tube parts made of carbon fiber reinforced thermoplastic (CFRTP) tape. The CFRTP tapes were manufactured by slitting Uni Direction sheet which impregnate opened continuous carbon fibers along the fiber axis with thermoplastic resin into tape form thin. They were braided to make a tube, which was consolidated under pressure and heat in the press forming process. At the braid formation, braiding tapes and the middle end tapes covered up emptiness cylinder surface without a gap.
The mechanical properties of the obtained pipes were larger than 800 MPa in bending strength and were larger than 100 GPa in bending modulus. These results greatly exceeded the original purpose, ‘the mechanical strength that was more than 5 times compared with the steel structure of the same mass.’
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