소성∙가공 (Transactions of Materials Processing)

  • 제21권4호
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  • Pages.252-257
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  • 2012
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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3차원 결정소성 유한요소해석을 통한 변형 집합조직 예측

Prediction of Deformation Texture Based on a Three-Dimensional Crystal Plasticity Finite Element Method

  • 정경환 (한국과학기술원 기계공학과 대학원) ;
  • 김동규 (한국과학기술원 기계공학과 대학원) ;
  • 임용택 (한국과학기술원 기계공학과) ;
  • 이용신 (국민대학교 기계공학과)
  • 투고 : 2012.03.20
  • 심사 : 2012.05.02
  • 발행 : 2012.07.01
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초록

Crystallographic texture evolution during forming processes has a significant effect on the anisotropic flow behavior of crystalline material. In this study, a crystal plasticity finite element method (CPFEM), which incorporates the crystal plasticity constitutive law into a three-dimensional finite element method, was used to investigate texture evolution of a face-centered-cubic material - an aluminum alloy. A rate-dependent polycrystalline theory was fully implemented within an in-house program, CAMPform3D. Each integration point in the element was considered to be a polycrystalline aggregate consisting of a large number of grains, and the deformation of each grain in the aggregate was assumed to be the same as the macroscopic deformation of the aggregate. The texture evolution during three different deformation modes - uniaxial tension, uniaxial compression, and plane strain compression - was investigated in terms of pole figures and compared to experimental data available in the literature.

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참고문헌

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피인용 문헌

  1. Prediction of Deformation Texture in BCC Metals based on Rate-dependent Crystal Plasticity Finite Element Analysis vol.23, pp.4, 2014, https://doi.org/10.5228/KSTP.2014.23.4.231