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| 1 | Analytical study for tube hydro- forming 显示文摘 | Sungtae Kim Youngsuk Kim | 2002 | Journal of Materials Processing Technology2002，128，13： | 1 |
| 2 | Approximation of circular arcs and offset curves by Bézier curves of high degree显示文摘 | Ahn Youngjoon Kim Yeonsoo Shin Youngsuk | 2004 | Journal of Computational and Applied Mathematics2004，167，2： | 1 |
| 3 | Study on wrinkling limit diagram of anisotropie sheet metals 显示文摘 | Kim Youngsuk Son Youngjin | 2000 | Journal of Materials Processing Technology2000，97，123： | 1 |
| 4 | Three-Dimensional Rigid-Plastic FEM Simulation of Bulk Forming Processes with New Contact and Remeshing Techniques显示文摘Some techniques such as die surface description, contact judgement algorithm and remeshing are proposed to improve the robustness of the numerical solution. Based on these techniques, a three-dimensional rigid-plastic FEM code has been developed. Isothermal forging process of a cylindrical housing has been simulated. The simulation results show that the given techniques and the FEM code are reasonable and feasible for three-dimensional bulk forming processes. | Debin Shan and Youngsuk Kim School of Mechanical Engineering, Kyungpook National University, Taegu 702-70 1, South Korea Hyunsoo Kim Graduate School of Mechanical Engineering, Kyungpook National University, Taegu 702-701, South Korea E-mail: shandb@public | 2001 | Journal of Materials Science & Technology2001，17，3： | 1 |
| 5 | Study on wrinkling limit diagram of anisotropic sheet metals显示文摘 | Youngsuk Kim Youngjin Son | 2000 | Journal of Material Processing Technology2000，97，： | 1 |
| 6 | Study on wrinkling limit diagram of anisotropic sheet metals显示文摘 | Youngsuk Kim Youngjin Son | 1999 | Journal of Materials Processing Tech1999，，1： | 1 |
| 7 | Study of Forming Limit for Rotational Incremental Sheet Forming of Magnesium Alloy Sheet显示文摘 | Jingee Park Jeounghan Kim Nhokwang Park Youngsuk Kim | 2010 | Metallurgical and Materials Transactions A2010，，1： | 1 |
| 8 | Volatile compounds in femented and acid -hydrolyzed soy sauce显示文摘 | LEE S M SEO B C KIM Youngsuk | 2006 | J Food Sci2006，71，3： | 1 |
| 9 | Seismic behaviour of composite concrete -filled tube column to-beam moment connections显示文摘 | SHIN KYUNG-JAE KIM YOUNG-JU OH YOUNGSUK | 2008 | Journal of Constructional Steel Research2008，64，1： | 1 |
| 10 | Approximation of circular arcs and offset curves by Bezier curves of high degree 显示文摘 | Young Joon Ahn Yeon soo Kim Youngsuk Shin | 2004 | Journal of Computational and Applied Mathematics2004，167，2： | 1 |
| 11 | Calculations of Forming Limit Diagrams for Changing Strain Paths on the Formability of Sheet Metal显示文摘In the press shop of most sheet metals, sheet material undergoes complex strain path and also the formability of the sheet material was limited by the stretchability of the material. Therefore, the precise prediction of path-dependent FLD based on M-K approach using generalization of Hill’s 1979 anisotropic yield criterion and introducing a strain gradient effect in the constitutive equation. Also, the theoretically obtained FLD will be compared with experimental data for steel sheets. | Hyunsung Sou Graduate School of Mechanical Eng., Kyungpook National University, Korea Youngsuk Kim Dept. of Mechanical Eng., Kyungpook National University, Korea | 2001 | Journal of Materials Science & Technology2001，17，1： | 1 |
| 12 | Behavior of Welded CFT Column to H-beam Connections with External Stiffeners显示文摘 | Shin Kyungjae Kim Youngju Oh Youngsuk | 2004 | Engineering Structures2004，26，13： | 1 |
| 13 | Behavior and sta- bility of a large-scale cut slope considering reinforcement stages 显示文摘 | Kang Gi Chun Song Youngsuk Kim Tae-Hyung | 2009 | Landslides2009，6，3： | 1 |
| 14 | A Multi-axis Contour Error Controller for Free Form Curves 显示文摘 | LEE Myunghoon YANG Seunghan KIM Youngsuk | 2004 | JSME International Journal2004，47，1： | 1 |
| 15 | Study on wrinkling limit diagram of anisotropic sheet metals显示文摘 | YOUNGSUK KIM YOUNGJIN SON | 2000 | Journal of Materials Processing Technology2000，97，： | 1 |
| 16 | Seismic behavior of composite concrete-filled tube column-to-beam moment connections 显示文摘 | SHIN KYUNG-JAE KIM YOUNG-JU OH YOUNGSUK | 2008 | Journal of Constructional Steel Research2008，64，1： | 1 |
| 17 | The effect of material and process variables on the stamping formability of sheet materials显示文摘 | Keecheol Park Youngsuk Kim | 1995 | Journal of Materials Processing Technology1995，51，： | 1 |
| 18 | Non-Local Analysis of Forming Limits of Ductile Material Considering Void Growth显示文摘The current study performed a finite element analysis of the strain localization behavior of a voided ductile material using a non-local plasticity formulation in which the yield strength depends on both an equivalent plastic strain measurement (hardening parameter) and Laplacian equivalent. The introduction of gradient terms to the yield function was found to play an important role in simulating the strain localization behavior of the voided ductile material. The effect of the mesh size and characteristic length on the strain localization were also investigated. An FEM simulation based on the proposed non-local plasticity revealed that the load-strain curves of the voided ductile material subjected to plane strain tension converged to one curve, regardless of the mesh size. In addition, the results using non-local plasticity also exhibited that the dependence of the deformation behavior of the material on the mesh size was much less sensitive than that with classical local plasticity and could be successfully eliminated through the introduction of a large value for the characteristic length. | Youngsuk Kim | 2003 | Journal of Materials Science & Technology2003，19，4： | 0 |
| 19 | Quasimolecular Dynamic Simulation for Bending Fracture of Laminar Composite Materials显示文摘Recently, quasimolecular dynamics has been successfully used to simulate the deformation characteristics of actual size solid materials. In quasimolecular dynamics, which is an attempt to bridge the gap between atomistic and continuum simulations, molecules are aggregated into large units, called quasimolecules, to evaluate large scale material behavior. In this paper, a 2-dimensional numerical simulation using quasimolecular dynamics was performed to investigate laminar composite material fractures and crack propagation behavior in the uniform bending of laminar composite materials. It was verified that under bending deformation laminar composite materials deform quite differently from homogeneous | Youngsuk Kim and Youngmoon Lee Department of Mechanical Engineering, Kyungpook National University, Taegu, South Korea Dongyoul Choi and Chanil Kim Graduate School, Kyungpook National University, Taegu, South Korea | 2001 | Journal of Materials Science & Technology2001，17，5： | 0 |
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