소성∙가공 (Transactions of Materials Processing)

  • 제5권1호
  • /
  • Pages.55-60
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  • 1996
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  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지

강-점소성 ALE 유한요소 수식화에 근거한 사각형 형재의 평금형 등온 압출에 대한 3차원 해석

A Three-Dimensional Rigid-Viscoplastic Finite Element Analysis of isothermal Square Die Extrusion of a Square Section Based on ALE Description

  • 강연식 (한국과학기술원 기계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • 발행 : 1996.03.01
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초록

In the finite element analysis of metal forming processes the updated Lagrangian approach has been widely and effectively used to simulate the non-steady state problems. however some difficulties have arisen from abrupt flow change as in extrusion through square dies. In the present work an ALE(arbitrary Lagrangian-Euleria) finite element formulation for deforma-tion analysis are presented fro rigid-viscoplastic materials. The developed finite element program is applied to the isothermal analysis of square die extrusion of a square section. The computational results are compared with those by the updated Lagrangian finite element analysis.

키워드

참고문헌

  1. J. Comp. Phys. v.14 An Arbitrary Lagrangian-Eulerian Computing Method for All Flow Speeds Hirt, C. W.;Amsden, A. A.;Cook, J. L.
  2. Comput. Meths. Appl. Mech. Engng. v.29 Lagrangian-Eulerian Finite element Formulation for Incompressible Viscous Flows Hughes, T. J. R.;Liu, W. K.;Zimmermann, T. K.
  3. Comput. Meths. Appl. Mech. Engrg. v.43 A Mixed Eulerian-Lagrangian Displacement Model for Large-Deformation Analysis in Solid Mechanics Haber, R. B.
  4. Comput. Meths. Appl. Mech. Engng. v.58 An Arbitrary Lagrangian-Eulerian Finite Element Method for Path-Dependent Materials Liu, W. K.;Belytschko, T.;Chang, H.
  5. Comput. Meths. Appl. Mech. Engrg. v.58 An Efficient, Accurate, Simple ALE Methods for Nonlinear Finite Element programs Benson, D. J.
  6. J. Mater. Shaping Technol. v.8 no.1 Finite Element Simulation of Some Extrusion Processes Using the Arbitrary Lagrangian-Eulerian Description Ghosh, S.
  7. 한국소성가공학회지 v.3 no.2 ALE 묘사에 근거한 강-점소성 유한요소 수식화와 축대칭 평금형 압출에의 적용 강연식;양동열
  8. 한국소성가공학회지 v.4 no.1 곡면금형을 통한 축대칭 열간압출의 유한요소해석 강연식;양동열
  9. Adv. in App. Mech. v.9 Fundamental Problems in Viscoplasticity P. Perzyna
  10. Master thesis, KAIST Remeshing Techniques Based on Arbitrary Lagrangian-Eulerian Description for Elastic-Plastic Large Deformation Problems Kim, J. H.
  11. Metal Forming: Fundamentals and Applications Altan, T.;Oh, S. I.;Gegel, H. L.
  12. 대한기계학회 '94 춘계학술대회 논문집(Ⅰ) 자동격자 재구성법을 이용한 평금형 압출의 3차원 열-점소성 유한요소 해석 강연식;양동열
  13. Int. J. Mech. Sci. v.32 no.4 A Three-Dimensional Rigid-Plastic Finite Element Alalysis of Bevel Gear Forging by Using a Remeshing Technique Yoon, J. H.;Yang, D. Y.
  14. Int. J. Machine Tools and Manufacture Investigation into the Thermal-Visco-Plastic Finite Element Analysis of Square Die Extrusion of Square Section with Lagrangian Description Yang, D. Y.;Kang, Y. S.