Development of forming limit prediction method for anisotropic steel tube subjected to combined loading paths and experimental validation

• Project/Area Number: 20360324
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: KUWABARA Toshihiko Tokyo University of Agriculture and Technology, 大学院・工学研究院, 教授 (60195609)
• Co-Investigator(Renkei-kenkyūsha): YOSHIDA Kengo 山形大学, 大学院・理工学研究科, 助教 (70436236)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000); Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2009: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2008: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
• Keywords: チューブハイドロフォーミング / 鋼管 / 異方性降伏関数 / 降伏曲面 / 成形限界ひずみ / 成形限界応力 / 材料試験 / 複合負荷経路 / チューブハイドロフオーミング / チューブハイドロフォーミ

Research Abstract

A servo-controlled biaxial tensile tenting machine for sheet metals was developed to measure the biaxial stress-strain curves of test samples in a strain range up to fracture with no unloading. The sheet sample was bent and welded to make a tubular specimen and combined tension-internal pressure was applied to it using the testing apparatus. The deformation behavior and forming limit stresses and strains of cold rolled IF steel sheet (SPCE) and high strength steel tube under linear and combined stress paths were successfully measured. The experimental tendencies were in qualitative agreed with those calculated using the strain localization analysis based on the Marciniak-Kuczy?ski approach.

Research Products

• [Journal Article] Measurement and analysis of differential work hardening behavior of pure titanium sheet using spline function (2011)
  • Author(s): M.Ishiki, T.Kuwabara, Y.Havashida
  • Journal Title: International Journal of Material Forming Volume: DOI:10.1007/s12289-010-1024-5
  • Peer Reviewed
• [Journal Article] Advances in anisotropy and formability (2010)
  • Author(s): Banabic D., Barlat, F., Cazacu, O., Kuwabara, T.
  • Journal Title: Int.J.Mater. Form. 3 Pages: 165-189
  • Peer Reviewed
• [Presentation] 大ひずみ複合二軸応力経路における冷延IF鋼板の塑性変形挙動の測定と解析 (2011)
  • Author(s): 江夏亮太朗・桑原利彦
  • Organizer: 平成23年度塑性加工春季講演会
  • Place of Presentation: 早稲田大学(発表確定)
  • Year and Date: 2011-05-28
• [Presentation] 連続複合負荷経路における鋼管の塑性変形特性と成形限界 (2011)
  • Author(s): 山岸駿介・桑原利彦
  • Organizer: 平23塑加春講論(53-54)
  • Place of Presentation: 早稲田大学
  • Year and Date: 2011-05-27
• [Presentation] 大ひずみ複合二軸応力経路下における冷延IF鋼板の塑性変形挙動の測定と解析 (2011)
  • Author(s): 江夏亮太朗・桑原利彦・山岸駿介・菅原史法
  • Organizer: 平23塑加春講論(267-268)
  • Place of Presentation: 早稲田大学
  • Year and Date: 2011-05-27
• [Presentation] Biaxial tensile test of cold rolled if steel sheet for large plastic strain range (2011)
  • Author(s): 江夏亮太朗, 桑原利彦
  • Organizer: Proc.NUMISHEET 2011
  • Place of Presentation: Seoul
• [Presentation] Forming limit evaluation of steel tube subjected to combined loading paths (2011)
  • Author(s): S.Yamagishi, K.Yoshida, T.Kuwabara
  • Organizer: Proc.5th Int.Conf.on Tube Hydroforming, TUBEHYDRO 2011
  • Place of Presentation: Noboribetsu
• [Presentation] 大ひずみ線彩二軸応力経路における冷延IF鋼板の塑性変形挙動 (2010)
  • Author(s): 江夏亮太朗・桑原利彦山岸駿介
  • Organizer: 第61回塑性加工連合講演会
  • Place of Presentation: 山形大学工学部
  • Year and Date: 2010-10-16
• [Presentation] 第61回塑性加工連合講演会 (2010)
  • Author(s): 山岸駿介・桑原利彦 江夏亮太朗
  • Organizer: 大ひずみ非線形2軸応力経路における冷延IF鋼板の塑性変形挙動
  • Place of Presentation: 山形大学工学部
  • Year and Date: 2010-10-16
• [Presentation] 大ひずみ線形二軸応力経路における冷延IF鋼板の塑性変形挙動 (2010)
  • Author(s): 江夏亮太朗・桑原利彦・山岸駿介
  • Organizer: 61回塑加連講論(439-440)
  • Place of Presentation: 山形大学
  • Year and Date: 2010-10-15
• [Presentation] 大ひずみ非線形2軸応力経路における冷延IF鋼板の塑性変形挙動 (2010)
  • Author(s): 山岸駿介・桑原利彦・江夏亮太朗
  • Organizer: 61塑加連講論(439-440)
  • Place of Presentation: 山形大学
  • Year and Date: 2010-10-15
• [Presentation] 中間除荷を含まない複合負荷経路を受ける鋼管の成形限界 (2010)
  • Author(s): 山岸駿介・桑原利彦
  • Organizer: CAMP-ISIJ(日本鉄鋼協会第160回秋季講演大会)(23-2,1094)
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-26
• [Presentation] サーボ制御大ひずみ円管バルジ試験機による鋼管の成形限界評価 (2010)
  • Author(s): 山岸駿介・桑原利彦
  • Organizer: 平成22年度塑性加工春季講演会論文集(193-194)
  • Place of Presentation: 電気通信大学
  • Year and Date: 2010-05-28
• [Presentation] サーボ制御大ひずみ円管バルジ試験機による純チタン板の加工硬化挙動の研究 (2010)
  • Author(s): 角田壮志・山岸駿介・林田康宏 桑原利彦
  • Organizer: 平成22年度塑性加工春季講演会
  • Place of Presentation: 電気通信大学
  • Year and Date: 2010-05-28
• [Presentation] サーボ制御大ひずみ円管バルジ試験機の開発 (2009)
  • Author(s): 山岸駿介
  • Organizer: 日本塑性加工学会 第60回塑性加工連合講演会
  • Place of Presentation: 信州大学(長野県)
  • Year and Date: 2009-11-01
• [Book] 鉄鋼材料の加工硬化特性への新たな要求と基礎研究-加工硬化研究の最前線-(3-1塑性異方性,ひずみ経路依存性,二軸応力負荷でのSS曲線) (2011)
  • Author(s): 桑原利彦
  • Publisher: (社)日本鉄鋼協会材料の組織と特性部会加工硬化特性と組織研究会
• [Remarks]
  • URL: http://www.tuat.ac.jp/~kuwabara/Seeds/Seeds2.htm
• [Remarks]
  • URL: http://www.tuat.ac.jp/~kuwabar
• [Remarks]
  • URL: http://www.tuat.ac.jp/~kuwabara/