Forming Limits for Anisotropic Sheet Metals

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概要

• 論文の詳細を見る

• Most failures of ductile materials in metal forming processes occurred due to material damage evolution-void nucleation, growth and coalescence. In this paper, modified version of Gurson-Tvergaard's yield function in conjunction with the Hosford's non-quadratic anisotropic yield criterion is studied to clarify the plastic deformation characteristic of voided anisotropic sheet metals. The void growth of an anisotropic sheet under biaxial tensile loading and damage effect of void growth on forming limits of sheet metals are investigated. Also the characteristic length defining the neck geometry is introduced in M-K model to incorporate the effect of triaxial stress in necked region on forming limits. The forming limits theoretically predicted are compared with some experimental data. Satisfactory agreement was obtained between the predictions and experimental data.

• 一般社団法人日本機械学会の論文
• 2003-10-15

著者

• KIM Chul

  School of Mechanical and Automotive Engineering, Kookmin University

• Hwang Sangmoo

  Department of Mechanical Engineering, Pohang University of Science and Technology

• Hwang Sangmoo

  Department Of Mechanical Engineering Pohang University Of Science And Technology

• Kim Youngsuk

  School Of Mechanical Engineering Kyungpook National University

• Kim C

  Yongin Univ. Kyunggi‐do Kor

• LEE Sangryong

  School of Mechanical Engineering, Kyungpook National University

• WON Sungyeun

  Graduate School, Kyungpook National University

• Won Sungyeun

  Graduate School Kyungpook National University

• Kim Chul

  School Of Mechanical And Automotive Engineering Kookmin University

• Lee Sangryong

  School Of Mechanical Engineering Kyungpook National University

• Kim Youngsuk

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

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