저자명 H. J. Lee J. H. Song H. Huh S. H. Park 
Journal Trans. of KSME(A) 
Volume 31 
Number
page 182-189 
Year 2007 
This paper is concerned with the empirical flow stress constitutive equation of steel sheets for an auto-body with the variation of temperature and strain rate. In order to represent the strain rate and temperature dependent behavior of the flow stress at the intermediate strain rates accurately, an empirical hardening equation is suggested by modifying the well-known Khan–Huang–Liang model. The temperature and strain rate dependent sensitivity of the flow stress at the intermediate strain rate is considered in the hardening equation by coupling the strain, the strain rate and the temperature. The hardening equation suggested gives good correlation with experimental results at various intermediate strain rates and temperatures. In order to verify the effectiveness and accuracy of the suggested model quantitatively, the standard deviation of the fitted result from the experimental one is compared with those of the other two well-known empirical constitutive models such as the Johnson–Cook and the Khan–Huang–Liang models. The comparison demonstrates that the suggested model gives relatively well description of experimental results at various strain rates and temperatures.
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85 Numerical Simulation of a Gun-launched Projectile Considering Rifled-gun Tube file G. Joo, H. Huh, Y. H....  2017.08.11 801
84 Modeling of a Ductile Fracture Criterion for Sheet Metal Considering Anisotropy file N. Park and H. Huh  2017.06.07 843
83 Prediction of Fracture Strains for DP980 Steel Sheets for a Wide Range of Loading Paths file N. Park, H. Huh  2015.06.15 1779
82 Investigation of springback behavior of DP780 steel sheets after the U-bending process file M.K.Choi H.Huh  2012.11.06 5356
81 Effect of Strain Rate on Anisotropic Deformation Behavior of Advanced High Strength Steel Sheets file Jeehyang Huh Hoon Huh...  2011.12.15 6553
80 Analytical study of the effect of material properties on the formability of sheet metals based on the M-K model file Yanshan Lou Seokbong ...  2010.11.12 6055
79 Quasi-static and Dynamic Deformation Behavior of STS304- and Ta-fiber-reinforced Zr-based Amorphous Matrix Composites Fabricated by Liquid Pressing Precess file Yongjin Kim Sang Yong...  2010.07.29 9205
78 Construction of Modified Yield Loci with Respect to the Strain Rates using Hill48 Quadratic Yield Function file C. S. Lee G. H. Bae S...  2010.03.08 5675
77 Forming Limit Diagram of DP590 considering the Strain Rate [1] [1] file S. B. Kim K. H. Ahn J...  2010.02.23 6732
76 Development ofAl Crash Box for High Crashworthiness Enhancement file J. S. Yoo S. B. Kim M...  2008.12.15 5675
75 Microscopic Investigation of the Strain Rate Hardening for Polycrystalline Metals file J. H. Yoon H. Huh C. ...  2008.03.10 6223
74 Finite Element Inverse Analysis of the Deep Drawing Process Considering Bending History file Jeehyang Huh Jonghuh ...  2007.12.21 5560
73 3-D Finite Element Modeling of Fiber Reinforced Rubber Composites using a Rebar Element file S.H. Jeong J.H. Song ...  2007.01.10 6549
» Dynamic Constitutive Equations of Auto-body Steel Sheets with the Variation of Temperature (Ⅱ) –Flow Stress Constitutive Equation– file H. J. Lee J. H. Song ...  2007.01.09 5358
71 Dynamic Constitutive Equations of Auto-body Steel Sheets with the Variation of Temperature (I)-Dynamic Material Characteristics with the Variation of Temperature file H. J. Lee J. H. Song ...  2007.01.09 5446
70 Light-weight Design with a Simplified Center-pillar Model for Improved Crashworthiness file Gihyun Bae Hoon Huh J...  2007.01.09 5603
69 Dynamic Tensile Characteristics of the High Strength Steel Sheet for an Auto-body file S. B. Kim H. Huh C. L...  2007.01.09 4850
68 Crash Analysis of the ULSAB-AVC Model with Considering Forming Effects file H. Huh J. H. Yoon Y. ...  2006.12.11 4889
67 Stress-Based Springback Reduction of an AHSS Front Side Member file J. H. Song S. H. Kim ...  2006.08.30 5025
66 Dynamic Material Property of the Sinter-Forged Cu-Cr Alloys with the Variation of Chrome Content file J.H. Song H. Huh  2006.08.02 6186