| Project/Area Number |
22K20414
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
FIKRY MOHAMMAD 東京理科大学, 創域理工学部機械航空宇宙工学科, 助教 (90962548)
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| Project Period (FY) |
2022-08-31 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | CFRP laminate / Damage suppression / Fiber discontinuity / Cellulose nanofiber / Composite Materials / Delamination / Ply discontinuity / CFRP / Fracture toughness / Mechanical property / Damage behavior |
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| Outline of Research at the Start |
In this study, a sustainable cellulose nanofiber reinforced resin will be effectively employed to increase the interlaminar fracture toughness in carbon fiber reinforced plastic (CFRP) laminates with complex internal structures, to suppress the damage propagation that always contributes to the failure of the structures.
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| Outline of Final Research Achievements |
The purpose of this study is to effectively employ cellulose nanofiber (CNF) reinforced resin in between plies of carbon fiber reinforced plastics (CFRP) laminates to increase its interlaminar fracture toughness. To do so, the mechanism of enhancement of interlaminar fracture toughness by using CNF reinforced resin is being experimentally clarified. In this study, a technology for localizing CNF reinforced resin composites in CFRP laminates was developed. Besides, the optimal conditions for amount of CNF reinforced resin applied in the CFRP interlayer were also determined. The CNF reinforced resin was then applied to CFRP laminates with complicated internal structures to suppress its damages.
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| Academic Significance and Societal Importance of the Research Achievements |
The introduction of CNF reinforced resin in CFRP laminates demonstrates that it is possible to prevent the development of delamination that leads to material failure. This represents a groundbreaking technology that significantly contributes to the broader application of composites.
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