저자명 Min Kuk Choi, Hoon Huh 
Name Tubehydroforming 2013 
Place Jeju, Korea 
Year 2013 
Sheet metal forming processes induce residual stress in the final product due to the plastic deformation. The residual stress leads elastic recovery of the formed part called springback which causes shape error in final product. This error becomes serious especially for high strength steels which are widely used in auto-body structure to improve the crash- worthiness maintaining the weight of the body light. Evaluation of the amount of springback becomes important for high strength steels since the amount of springback becomes significant. This paper deals with the experimental investigation on the springback behavior of DP780 steel sheets with various process parameters. U-bending experiments were conducted for springback evaluation at different punch speed, blank holding force and bending radius with the geometry adopted from the NUMISHEET ’93 benchmark problem. For U-bending experiments, Instron 8801 dynamic materials testing machine and a newly designed U-bending jig were used to conduct U-bending experiments with various process parameters. The effects of each process parameters on springback behavior were discussed in detail
번호 제목 저자명 날짜 조회 수
96 High Strain-rate Test of Sinter-forged Cu-Cr Material with Split Hopkinson Pressure Bar file J. H. Lim H. Huh  2005.11.29 4834
95 Mesh regularization in sheet metal forming of auto-body members for crashworthiness assessment file J. H. Yoon H. Huh  2005.12.13 4830
94 Quality Evaluation of a Single-layer Steel Cord Using the Simplified Simulation Method of the Roller Straightening Process file G. H. Bae H. Huh B. H...  2011.07.04 4815
93 The Intermesh Effect on the Roller Straightening Process Of a Single-layer Steel Cord file Gihyun Bae Hoon Huh J...  2011.03.22 4814
» Experimental Investigation on the Springback Behavior of DP780 Steel Sheets with Various Process Parameters file Min Kuk Choi, Hoon Huh  2013.12.27 4810
91 Compressive Behavior of PBX Simulant at Various Strain Rates file Sehwan Jeong Chunghee...  2011.03.16 4807
90 Parameter Study of the Roller Straightening Process of Steel Cords Using Finite Element Analysis file Gihyun Bae, Jongsup ...  2009.07.27 4778
89 Estimation of Shape and Non-shape Parameters in Sheet Metal Forming Processes with Inverse Finite Element Analysis file C. H. Lee H. Huh  2005.11.29 4777
88 Stress Evaluation of Nano-Composites with Nano-Platelets file J. H. Song H. Huh H. ...  2005.12.13 4706
87 A Time-Discontinuous Variational Integrator of Hamiltonian for Conservative Mechanical System file Sang Soon Cho, Hoon ...  2009.07.30 4675
86 Effect of Tensile Speed on the Failure Load of the Spot Weld Under Combined Loading Conditions file J. H. Song H. Huh J. ...  2008.01.11 4672
85 Compatible Finite Element Modeling of Laser-Welded Region for Crash Analysis of Auto-Body Assemblies file Jiwoong Ha Hoon Huh Y...  2011.04.01 4665
84 Construction of Sliding Constraint Surfaces and Initial Guess Shapes for Intermediate Steps in Multi-Step Finite Element Inverse Analysis file S.H. Kim H. Huh  2005.12.13 4664
83 Inverse Method in Sheet Metal Forming for Auto-body Design file H. Huh J.H. Song J.H...  2005.12.13 4652
82 Dynamic Characteristics of the Sinter-Forged Cu-Cr Alloys with the Variation of Chrome Content file J. H. Song H. Huh  2007.01.10 4651
81 Crashworthiness Assessment of Auto-Body Members Considering the Fabrication Histories file H. Huh J. H. Song K....  2005.12.13 4643
80 Finite Element Analysis of Powdered Magnet Sinter-forging Processes Considering Deformable Body Contact file S. H. Kim H. W. Lee H...  2005.11.29 4635
79 COLLAPSE ANALYSIS OF AN AUTO-BODY STURUCTURE BY A FINITE ELEMENT LIMIT METHOD file K. P. Kim H. Huh  2005.11.29 4621
78 MODIFIED INTEGRATION ALGORITHM IN THE STRAIN SPACE FOR RATE AND TEMPERATURE DEPENDENT ELASTO-PLASTIC CONSTITUTIVE MODEL file S. S. Cho H. Huh  2007.11.26 4618
77 Efficiency enhancement of sheet metal forming analysis witha mesh regularization method file J. H. Yoon H. Huh  2005.12.13 4598