Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Kinematics in Nonsteady Plane Strain Ideal Flow

비정상 평면 변형에서의 이상 유동

  • 정관수 (서울대학교 재료공학부) ;
  • 이원오 (서울대학교 재료공학부) ;
  • 유웅렬 (미시간주립대학교 기계공학과)
  • Published : 2002.08.01
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Abstract

The ideal forming theory[1], which has been developed as a direct design method, provides an optimization technique for forming processes undergoing plastic deformation. In the ideal flow, materials are prescribed to deform following the minimum plastic work path. Besides the general ideal forming theory[2,3], specific ideal forming theories for membrane sheet forming[4] as well as two-dimensional steady bulk forming[5-7] have been previously developed. In this work, the theory is extended for the non-steady bulk forming under the plane strain condition. In particular, kinematics to describe the deformation along the minimum plastic work path is successfully developed using the orthogonal convective coordinate system based on the characteristic method.

Keywords

References

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