2018 Fiscal Year Final Research Report
Manufacturing ULCs (Ultra-Lightweight constructions) of thermosetting continuous CFRP by continuous production of strip, forming at 100 degree Celsius, and joining by plastic deformation
Project/Area Number |
26249109
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Material processing/Microstructural control engineering
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Research Institution | The University of Tokyo |
Principal Investigator |
Yanagimoto Jun 東京大学, 大学院工学系研究科(工学部), 教授 (90220194)
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Co-Investigator(Kenkyū-buntansha) |
大家 哲朗 慶應義塾大学, 理工学部(矢上), 講師 (10410846)
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Project Period (FY) |
2014-04-01 – 2019-03-31
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Keywords | CFRP薄板 / 超軽量構造 / 温間圧延・成形 / 連続薄板化 / 成形性試験法 / 構造最適化 / 金属薄板 |
Outline of Final Research Achievements |
This investigation aims at realizing the Ultra-lightweight structures by forming CFRPs, which are composed of thermosetting resin and continuous carbon fibers, and the high-speed manufacturing of CFRP sheet. The application of CFRP-metal-based ultra-lightweight structures will have a marked increase in vehicles and industrial machines. High-speed manufacturing of CFRP sheets, forming of CFRP sheets and hybrid structures composed by metal sheet and CFRP were investigated to reach above goals. Continuous production of thermosetting CFRP sheets were experimentally tried by using rolling mill and furnace. The quality of manufactured sheet is slightly inferior to those manufactured by using autoclave: however, the sheet with void fraction less than 3% were successfully manufactured. Metal face sheet with three-dimensional CFRTP core hybrid structure is newly proposed. This hybrid structure can change and optimize macrostructure to attain expected formability and flexural strength.
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Free Research Field |
工学
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Academic Significance and Societal Importance of the Research Achievements |
CFRP連続薄板製造法と、新たな金属FRP ハイブリッド構造を提案できたことが学術的な意義の二本柱である。圧延機を使ったCFRP薄板の連続的な製造は世界で初めての事例である。フェースシートに金属を、コアにCFRPを利用したハイブリッド構造は、マクロ構造制御による機械的特性制御を可能とする。これらの学術的成果は、例えば輸送機器の軽量化などの社会的な意義を持つことが期待できる。
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