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

组合加载路径下各向异性钢管成形极限预测方法的开发及实验验证

• 批准号: 20360324
• 负责人: KUWABARA Toshihiko
• 金额: $ 12.23万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360324/
• 关键词: 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

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.

研制了一台伺服控制的双向拉伸试验机，用于在不卸载的情况下测量试样在直至断裂的应变范围内的双向应力-应变曲线。将片材样品弯曲并焊接以制成管状试样，并使用测试装置对其施加组合拉伸-内压。成功地测定了IF钢冷轧薄板和高强钢管在线性和复合应力路径下的变形行为和成形极限应力应变。实验趋势与基于Marciniak-Kuczy？的应变局部化分析计算的结果在定性上一致。滑雪进场。

项目成果

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

大应变复杂双轴应力路径下冷轧IF钢板塑性变形行为测量与分析

• 发表时间: 2011
• 作者: S.Deehasing;K.Sato;O.Saguanruang;S.Chaianansutcharit;江夏亮太朗・桑原利彦
• 通讯作者: 江夏亮太朗・桑原利彦

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

无中间卸载的复杂加载路径下钢管的成形极限

• 发表时间: 2010
• 作者: Hiromasa Tsuchiya;ほか;江夏亮太朗・桑原利彦山岸駿介;Tanawat Kanjanaboonmalert;K.Sato;山岸駿介・桑原利彦 江夏亮太朗;K.Sato;江夏亮太朗・桑原利彦・山岸駿介;K.Sato;山岸駿介・桑原利彦・江夏亮太朗;山岸駿介・桑原利彦
• 通讯作者: 山岸駿介・桑原利彦

Biaxial tensile test of cold rolled if steel sheet for large plastic strain range

大塑性应变范围冷轧IF钢板双向拉伸试验

• 发表时间: 2011
• 作者: 江夏亮太朗;桑原利彦
• 通讯作者: 桑原利彦

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

大应变线双轴应力路径下冷轧IF钢板的塑性变形行为

• 发表时间: 2010
• 作者: Hiromasa Tsuchiya;ほか;江夏亮太朗・桑原利彦山岸駿介
• 通讯作者: 江夏亮太朗・桑原利彦山岸駿介

Advances in anisotropy and formability

• DOI: 10.1007/s12289-010-0992-9
• 发表时间: 2010-06
• 期刊: International Journal of Material Forming
• 影响因子: 2.4
• 作者: D. Banabic;F. Barlat;O. Cazacu;T. Kuwabara