저자명 MingJun Piao, Hoon Huh, Ikjin Lee, Hyungwon Kim, Leeju Park 
Name 9th International Symposium on Impact Engineering 
Place Taiwan 
Year 2016 
The thermal softening occurs simultaneously with strain hardening when a material undergoes plastic deformation. In order to investigate the thermal softening behavior at different strain rates, several uniaxial tensile tests are performed at different strain rates and temperatures by using four kinds of materials: 4340 steel (BCC); 4130 steel (BCC); OFHC copper (FCC); and Ti6Al4V alloy (HCP). Uniaxial material tests are performed at a wide range of strain rates from 103 s1 to 103 s1 by using an INSTRON 5583, a High Speed Material Testing Machine (HSMTM), and a Tension Split Hopkinson Pressure Bar (TSHB). Moreover, tensile tests are performed at temperatures of 25 ℃ and 200 ℃ and at strain rates of 103 s1 ,101 s1, and 102 s1, respectively. The thermal softening behavior is evaluated with the Taylor impact tests which accompany with high strain rates and high plastic deformation. A modified thermal softening model is utilized for the accurate application of the thermal softening effect at different strain rates. The thermal softening effect is evaluated by comparing the seven sequentially deformed shapes of the projectile from numerical simulation results with the experimental results of Taylor impact tests.  
번호 제목 저자명 날짜 조회 수
176 Characterization of Hardening Behavior at Ultra-High Strain Rate, Large Strain, and High Temperature file MingJun Piao, Hoon Hu...  2017.10.11 171
» Validation of the Thermal Softening Effect at a Wide Range of Strain Rates by Using the Taylor Impact Test file MingJun Piao, Hoon Hu...  2017.10.11 183
174 Modeling of rate-dependent hardening behaviors of the TWIP980 steel sheet in tension and compression file Geunsu Joo, Hoon Huh  2017.10.11 129
173 Effect of Pre-strain on Tensile Properties of Al5052-H32 under an Electropulsing Condition M. Kim, J. Song, H. Huh  2017.10.11 145
172 Prediction of fracture initiation in square cup drawing of DP980 using an anisotropic ductile fracture criterion file N. Park, H. Huh, J. Yoon  2017.10.11 143
171 Investigation of the hardening behavior of sheet metals at intermediate strain rates considering the pre-strain M. Kim and H. Huh  2017.06.07 375
170 Tensile properties of a tempered glass plate at the quasi-static state M. Kim, H. Huh, E. Ju...  2017.06.07 280
169 A Method for Evaluation of Tensile Properties of a Nugget Zone in a Spot-Welded Joint Considering the Strain Rate N. Park, M. Park, and...  2017.06.07 269
168 Prediction of the onset of fracture of DP980 steel 1.2t under typical loading conditions based on associated and non-associated flow rules file N. Park and H. Huh  2017.06.07 290
167 Evaluation of tensile properties of heat-treated AISI4340 steel at various strain rates file N. Park, S.J. Lim, an...  2017.06.07 288
166 Prediction of the Ductile-to-Brittle Transition Temperature of a silicon steel under various strain rate conditions file Junbeom Kwon, Hoon Hu...  2017.06.07 284
165 Rate-dependent Material Parameters of the Combined Isotropic/kinematic Hardening Model for the TRIP980 steel sheet file Geunsu Joo, Hoon Huh  2017.06.07 285
164 RATE-DEPENDENT HARDENING BEHAVIORS OF ULTRA-HIGH STRENGTH STEEL SHEETS UNDER IN-PLANE TENSION/COMPRESSION file Hoon Huh, Geunsu Joo  2017.06.07 319
163 ASYMMETRIC MECHANICAL PROPERTIES OF TRIP980 AND TWIP980 STEEL SHEETS AT VARIOUS STRAIN RATES file Geunsu Joo, Hoon Huh  2017.06.07 297
162 AN IMPROVED DEVICE FOR THE TENSION/COMPRESSION TEST AT INTERMEDIATE STRAIN RATES file Geunsu Joo, Hoon Huh  2017.06.07 271
161 Tensile Properties of Auto-body Plastic with Various Strain Rates for FEM by Using The DIC Method and The Force Equilibrium Grid Method file Jesung Yoo, Hoon Huh,...  2017.06.07 270
160 Tensile Properties of Stitched Fabric Composite Manufactured by RTM Considering Various Strain Rates and Stacking Sequences file Jesung Yoo, Hoon Huh,...  2017.06.07 285
159 Efficient coil design by electromagnetic topology optimization for electromagnetic sharp edge forming of DP980 steel sheet file M. K. Choi, H. Huh, M...  2016.05.25 1522
158 Fracture-based forming limit criteria for anisotropic materials in sheet metal forming file Namsu Park, Hoon Huh  2016.02.17 2087
157 The tensile properties of CFRP laminate with various stacking sequences considering the strain rate effect at intermediate strain rate file Junbeom Kwon, Hoon Huh  2015.08.08 1781