저자명 Geunsu Joo, Minkuk Choi, Hoon Huh 
Name 2014 KASE Anual conference 
Year 2014 
page  
The tension/compression hardening behavior is important in sheet metal forming processes because of complicated
loading paths. Experimental methods to measure the tension/ compression behavior have not considered the effect of the
strain rate although the strain rate is related to the hardening behavior of sheet metal. The tension/compression tests need
to be conducted considering the strain rate to acquire accurate hardening behavior.
This paper deals with an experimental technique to measure the tension/compression behavior of sheet metal at strain
rates from 0.001 s-1 to 50 s-1 for real sheet metal forming. A new clamping device was developed to prevent a sheet
specimen from buckling under compression loading condition. Jig systems to impose pre-strain and reverse loading were
also developed for high speed material testing machine. Tension/compression tests have been conducted at various strain
rates for SPCC and DP590 with pre-strain of 10%. Hardening behavior under the tension or compression loading
condition was compared to each other at severe strain rates.
번호 제목 저자명 날짜 조회 수
256 Evaluation of Dynamic Hardening Models With Taylor Impact Tests at Ultra High Strain Rates For 4340 Steel file M. J. Piao, I. Lee, H...  2017.10.11 292
255 Tension/compression Test of Giga-grade Steel Sheets Considering Intermediate Strain Rates file Geunsu Joo, Hoon Huh  2017.06.07 386
254 Evaluation of Measurement Uncertainty of Dynamic Tensile Properties M.K. Choi, H. Choe, H...  2017.06.07 342
253 Evaluation of Tensile Properties of Auto-body Plastics Using DIC Method and Force Equilibrium Grid Method file Jesung Yoo, Park Nams...  2017.06.07 372
252 Modeling of a Ductile Fracture Model Considering the Anisotropy of Sheet Metal file N. Park and H. Huh  2015.12.28 2242
251 Evaluation of Dynamic Hardening Models With Taylor Impact Tests at Ultra High Strain Rates For 4340 Steel file M.J. Piao, I. Lee, H....  2015.06.15 2422
250 Prediction of Fracture Strains for DP980 Steel Sheets at a Wide Range of Loading Paths file N. Park, H. Huh  2014.10.29 2556
249 Evaluation of Structural Design for Improvement of the Roof Strength of a Three-Wheel Vehicle file Jesung Yoo, Junbeom K...  2014.07.10 2908
» Tension/compression Hardening Behavior of Auto-body Steel Sheets at Intermediate Strain Rates file Geunsu Joo, Minkuk Ch...  2014.07.10 2876
247 Prediction of Deformation Behavior of PBX Simulant in a Warhead during High Speed Crash file Namsu Park, Chunghee ...  2014.07.01 3132
246 Tensile Properties of Nugget Region in Spot-welded Joints at Various Strain-Rates file Namsu Park, Moonsu Pa...  2014.07.01 3162
245 Measurement Uncertainty Evaluation of High Speed Tensile Properties of AZ 31 Sheet Considering Correlation file M. K. Choi, H. Huh, C...  2014.06.24 2883
244 Evaluation and Prediction of Tensile Properties of CFRP file Junbeom Kwon, Jaeyoun...  2013.12.27 3505
243 Experimental Investigation of the Effect of the Forming Speed on the Springback Behavior of DP780 Steel Sheets file M. K. Choi, H. Huh  2013.12.27 2949
242 Evaluation of Standard Uncertainty in Modified Measurement of Dynamic Tensile Properties of Auto-body Steel Sheets file Min Kuk Choi, Sehwan ...  2013.12.27 3170
241 The stress softening-effect of polymer-bonded explosive simulant for shear deformation file Kee Sun Yeom Hoon Huh...  2013.12.10 3018
240 User Defined Material Model in LS-DYNA for Numerical Simulations of PBX Simulants file Chunghee Park Hoon Hu...  2013.08.30 4844
239 Fracture strain evaluation of the metallic materials at intermediate strain rates file Sung Jun Lim and Hoon...  2013.08.30 3246
238 Anisotropy Effect on the Fracture Strain of DP980 Sheets [1] file Namsu Park, Sung Jun ...  2013.08.29 3396
237 Evaluation of Ductile Fracture Criteria in Full Stress States file Yanshan Lou, Mingjun...  2013.02.01 5369