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RISS 인기검색어
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- 저자 : 전만수(M. S. Joun) (검색결과 424 건)
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소성유동선도 관점에서의 AFDEX2D와 3D의 예측 결과 비교
전만수(M. S. Joun),이민철(M. C. Lee),엄재근(J. G. Eom) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.5
In this paper, finite element predictions obtained by AFDEX 2D and 3D are compared with emphasis on metal flow lines as well as final shapes. AFDEX 2D employs the numerically clear quadrilateral finite elements with the reduced integration scheme while AFDEX 3D is based on the tetrahedral MINI-elements, that is, they are theoretically different. Several axi-symmetric or plane strain processes are tested to reveal the similarity and difference between 2D and 3D predictions. It has been shown that there exist a distinct difference between them and that they can be negligible from the standpoint of engineering applications.
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전만수(M. S. Joun),이장호(J. H. Lee),김민철(M. C. Kim),황지훈(J. H. Hwang),심재원(J. W. Sim),홍석무(S. M. Hong) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
In this paper, a two-dimensional finite element analysis model for rectangular clad plate drawing is proposed to examine its detailed plastic deformation. Three-dimensional behaviors of plastic deformation of clad plate are investigated using some finite element predictions and finite element predictions of its drawing process are qualitatively compared with the experiments. Based on the observations, a two-dimensional analysis model is proposed, which reveals that relatively thin clad material has little influence on history dependent variables including strain and damage. However, residual stress tends to concentrate very much on the clad material.
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전만수(M. S. Joun),문호근(H. K. Moon),심상현(S. H. Shim),이민철(M. C. Lee),엄재근(J. G. Eom) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10
In this paper, a ring rolling simulator, AFDEX / RING, based on a rigid-thermoviscoplastic finite element method is presented with emphasis on its remeshing capabilities. Key features of the simulator are introduced and several application examples including two cold ring rolling processes and a hot rolling process are given, which show the characteristics of the simulator.
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