저자명 Junbeom Kwon, Hoon Huh, Jae-song Kimor 
Name AEPA 2016 
Place Hiroshima, Japan 
Year 2016.12.04 ~ 08 

This paper is concerned with the construction of an empirical model of the Ductile-to-Brittle Transition Temperature (DBTT) of 3.4 % silicon steel at strain rates from 0.001 s‒1 to 100 s‒1. The constructed model is based on tensile tests results of 3.4 % silicon steel. Dynamic tensile tests were conducted using an in-house servo hydraulic tensile test machine (HSMTM) with the chamber and quasi-static tensile tests were conducted using Instron 4206 with the chamber. Fracture elongation was measured by DIC method during all tests using the high-speed camera for accurate measurement. The DBTT of 3.4 % silicon steel is presented in terms of fracture strain with the various temperature at various strain rates. From the tests results, it is demonstrated that the DBTT increased as strain rate increase. The empirical model of the DBTT is constructed in terms of strain rate, temperature and fracture elongation. The parameters of the empirical model were obtained from tests results.

번호 제목 저자명 날짜 조회 수
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175 Validation of the Thermal Softening Effect at a Wide Range of Strain Rates by Using the Taylor Impact Test file MingJun Piao, Hoon Hu...  2017.10.11 109
174 Modeling of rate-dependent hardening behaviors of the TWIP980 steel sheet in tension and compression file Geunsu Joo, Hoon Huh  2017.10.11 77
173 Effect of Pre-strain on Tensile Properties of Al5052-H32 under an Electropulsing Condition M. Kim, J. Song, H. Huh  2017.10.11 81
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 86
171 Investigation of the hardening behavior of sheet metals at intermediate strain rates considering the pre-strain M. Kim and H. Huh  2017.06.07 303
170 Tensile properties of a tempered glass plate at the quasi-static state M. Kim, H. Huh, E. Ju...  2017.06.07 202
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...  2017.06.07 210
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  2017.06.07 216
167 Evaluation of tensile properties of heat-treated AISI4340 steel at various strain rates file N. Park, S.J. Lim, an...  2017.06.07 216
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165 Rate-dependent Material Parameters of the Combined Isotropic/kinematic Hardening Model for the TRIP980 steel sheet file Geunsu Joo, Hoon Huh  2017.06.07 217
164 RATE-DEPENDENT HARDENING BEHAVIORS OF ULTRA-HIGH STRENGTH STEEL SHEETS UNDER IN-PLANE TENSION/COMPRESSION file Hoon Huh, Geunsu Joo  2017.06.07 231
163 ASYMMETRIC MECHANICAL PROPERTIES OF TRIP980 AND TWIP980 STEEL SHEETS AT VARIOUS STRAIN RATES file Geunsu Joo, Hoon Huh  2017.06.07 217
162 AN IMPROVED DEVICE FOR THE TENSION/COMPRESSION TEST AT INTERMEDIATE STRAIN RATES file Geunsu Joo, Hoon Huh  2017.06.07 213
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,...  2017.06.07 206
160 Tensile Properties of Stitched Fabric Composite Manufactured by RTM Considering Various Strain Rates and Stacking Sequences file Jesung Yoo, Hoon Huh,...  2017.06.07 209
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 1447
158 Fracture-based forming limit criteria for anisotropic materials in sheet metal forming file Namsu Park, Hoon Huh  2016.02.17 2004
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 1699