Micron-order dimensional control and its long-term stability for CFRP

• Project/Area Number: 20760079
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Materials/Mechanics of materials
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: KOYANAGI Jun Japan Aerospace Exploration Agency, 宇宙科学研究本部, 助教 (60386604)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 複合材料 / 長期寸法安定性 / CFRP / 形状安定性 / 寸法安定性評価 / 吸湿変形 / 経時変形

Research Abstract

CFRPの面外変形に最も支配的である吸湿変形を調査し,その特徴を理解した.

Research Products

• [Journal Article] Analysis of thermal deformation on honeycomb sandwich CFRP mirror (2010)
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Hiroshi Terada, Shin Utsunomiya, Hiroyuki Kawada
  • Journal Title: Mechanics of Advanced Materials and Structures (In press)
• [Journal Article] Time dependency of carbon/epoxy interface strength (2010)
  • Author(s): Jun Koyanagi, Satoru Yoneyama, Kastuya Eri, Pranav D. Shah
  • Journal Title: Composite Structures Vol.92 Pages: 150-154
• [Journal Article] Time dependency of carbon/epoxy interface strength (2010)
  • Author(s): Jun Koyanagi, et. al.
  • Journal Title: Composite Structures 92 Pages: 150-154
  • Peer Reviewed
• [Journal Article] Evaluation of interfacial tensile strength in glass fiber/epoxy resin interface using the cruciform specimen method (2009)
  • Author(s): Shinji Ogihara, Yoriaki Sakamoto, Jun Koyanagi
  • Journal Title: Journal of Solid Mechanics and Materials Engineering Vol.3 Pages: 1071-1080
  • NAID: 130000127148
• [Journal Article] A comprehensive model for determining tensile strengths of various unidirectional composites (2009)
  • Author(s): Jun Koyanagi, Masaki Kotani, Hiroshi Hatta, Hiroyuki Kawada
  • Journal Title: Journal of Composite Materials Vol.43 Pages: 1901-1914
• [Journal Article] Comparison of a viscoelastic frictional interface theory with a Kinetic Crack Growth theory in unidirectional composites (2009)
  • Author(s): Jun Koyanagi
  • Journal Title: Composites Science and Technology Vol.69 Pages: 2158-2162
• [Journal Article] CFRP直交積層板の高温・多湿環境下における形状変化挙動 (2009)
  • Author(s): 荒尾与史彦, 小柳潤, 宇都宮真, 寺田裕, 川田宏之
  • Journal Title: 日本複合材料学会誌 Vol.35 Pages: 241-247
  • NAID: 10026446509
• [Journal Article] Analysis of time-dependent deformation of a CFRP mirror under hot and humid environment (2009)
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Shinichi Takeda, Hiroyuki Kawada
  • Journal Title: Mechanics of Time-Dependent Materials Vol.13 Pages: 183-197
• [Journal Article] Cruciform Specimen法による繊維/樹脂界面破壊クライテリオン確立手法の解析的検討 (2009)
  • Author(s): 小柳潤, 加藤肇, 荻原慎二
  • Journal Title: 材料システム Vol.27 Pages: 63-69
  • NAID: 130007987264
• [Journal Article] Mixed-mode interfacial debonding simulation in single fiber composite under transverse load (2009)
  • Author(s): Jun Koyanagi, Pranav D. Shah, Souta Kimura, Sung K Ha, Hiroyuki Kawada
  • Journal Title: Journal of Solid Mechanics and Materials Engineering Vol.3 Pages: 796-806
  • NAID: 130000127289
• [Journal Article] Cruciform Specimen法を用いたガラス繊維強化複合材料の界面強度評価 (2009)
  • Author(s): 荻原慎二, 坂本頼昭, 小柳潤
  • Journal Title: 日本機械学会論文集A編 Vol.75 Pages: 49-55
• [Journal Article] Time-dependent out-of-plane deformation of UD-CFRP in humid environment (2009)
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Hiroyuki Kawada
  • Journal Title: Composites Science and Technology Vol.69 Pages: 1720-1725
• [Journal Article] A comprehensive model for determining tensile strengths of various unidirectional composites (2009)
  • Author(s): Jun Koyanagi, et. al.
  • Journal Title: Journal of Composite Materials 43 Pages: 1901-1914
  • Peer Reviewed
• [Journal Article] Compadson of a viscoelastic frictional interface theory with a Kinetic Crack Growth theory in unidirectional composites (2009)
  • Author(s): Jun Koyanagi
  • Journal Title: Composites Science and Technology 69 Pages: 2158-2162
  • Peer Reviewed
• [Journal Article] 繊維強化プラスチックの長期寸法安定性 (2008)
  • Author(s): 荒尾与史彦, 小柳潤, 川田宏之, 八田博志
  • Journal Title: 材料システム Vol.26 Pages: 5-16
  • NAID: 130007987277
• [Journal Article] Analysis of time-dependent deformation of CFRP considering the anisotropy of moisture diffusion (2008)
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Hiroshi Hatta, Hiroyuki Kawada
  • Journal Title: Advanced Composite Materials Vol.17 Pages: 359-372
• [Journal Article] CFRPの吸湿濃度を考慮した微視的寸法変化の調査 (2008)
  • Author(s): 荒尾与史彦, 小柳潤, 八田博志, 川田宏之
  • Journal Title: 複合材料学会誌 Vol.34,No.3 Pages: 95-101
  • NAID: 10023982965
• [Journal Article] Mixed-mode interfacial debonding simulation in single fiber composite under transverse load
  • Author(s): Jun Koyanagi, Pranav D. Shah, Souta Kimura, Sung K Ha, Hiroyuki Kawada
  • Journal Title: Journal of Solid Mechanics and Materials Engineering (Accepted)
  • NAID: 130000127289
  • Peer Reviewed
• [Journal Article] Analysis of time-dependent deformation of a CFRP mirror under hot and humid environment
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Shinichi Takeda, Hiroyuki Kawada
  • Journal Title: Mechanics of Time-Dependent Materials (Accepted)
  • Peer Reviewed
• [Journal Article] Time-dependent out-of-plane deformation of UD-CFRP in humid environment
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Hiroyuki Kawada
  • Journal Title: Composite Science and Technology (Accepted)
  • Peer Reviewed
• [Presentation] High accurate space telescope mirror made by light and thermally stable CFRP (2010)
  • Author(s): Jun Koyanagi, et. al.
  • Organizer: 2010 M&M International Symposium for Young Researchers
  • Place of Presentation: U.S.A., Pasadena
  • Year and Date: 2010-03-02
• [Presentation] High accurate space telescope mirror made by light and thermally stable CFRP (2010)
  • Author(s): Jun Koyanagi, Yoshihiko Arao, Shin Utsunomiya, Shin-ichi Takeda, Hiroyuki Kawada
  • Organizer: 2010 M&M International Symposium for Young Researchers
  • Place of Presentation: (in CD-ROM)
• [Presentation] Development of Space Telescope Mirror Made by Light and Thermally Stable CFRP (2009)
  • Author(s): Jun Koyanagi, et. al.
  • Organizer: 4th Ihtemational Conference on Experimental Mechanics 2009
  • Place of Presentation: Singapore, Singapore
  • Year and Date: 2009-11-18
• [Presentation] Development of Space Telescope Mirror Made by Light and Thermally Stable CFRP (2009)
  • Author(s): Jun Koyanagi, Yoshihiko Arao, Hiroshi Terada, Shinichi Takeda, Shin Utsunomiya, Hiroyuki Kawada
  • Organizer: 4th International Conference on Experimental Mechanics 2009
  • Place of Presentation: (in CD-ROM)
• [Presentation] "Simultaneous fiber failure model" for determining unidirectional composite strengths (2009)
  • Author(s): Jun Koyanagi, Masaki Kotani, Hiroshi Hatta, Hiroyuki Kawada
  • Organizer: 7th Japan-Korea Joint Symposium on Composite Materials
  • Place of Presentation: (in CD-ROM)
• [Presentation] Interfacial strength in tensile and shear directions under transverse tensile test for single fiber composite (2008)
  • Author(s): Jun Koyanagi, Pranav D. Shah, Sung K Ha, Hiroyuki Kawada
  • Organizer: 13^<th> Composites Durability Workshop
  • Place of Presentation: Singapore, Singapore
  • Year and Date: 2008-07-02
• [Presentation] Dimensional and geometrical stability of CFRP laminates in hostile environment (2008)
  • Author(s): Yoshihiko Arao, Jun Koyanagi, Shinichi Takeda, Hiroyuki Kawada
  • Organizer: European Conference on Composite Materials 13th
  • Place of Presentation: Sweden, Stockholm
  • Year and Date: 2008-06-02
• [Book] Creep and fatigue in polymer matrix composites(edited by R. M. Guedes, Micromechanical models approach to the time-dependent failure of off-axis(90° direction) polymer matrix composite, Chapter 11) (2010)
  • Author(s): Jun Koyanagi
  • Publisher: Woodhead Publishing Limited
• [Book] Chapter 11 in "Creep and fatigue in polymer matrix composites" (2010)
  • Author(s): Jun Koyanagi
  • Total Pages: 15
  • Publisher: Woodhead Publishing Limited