저자명 J. H. Yoon H. Huh C. G. Park J. S. Kang J. H. Suh M. Y. Huh H. G. Kang 
Journal Trans. KSTP 
Volume 17 
Number
page 46-51 
Year 2008 

 Polycrystalline materials such as steels(BCC) and aluminum alloys(FCC) show the strain hardening and the strain rate
hardening during the plastic deformation. The strain hardening is induced by deformation resistance of dislocation glide
on some crystallographic systems and increase of the dislocation density on grain boundaries or inner grain. However, the
phenomenon of the strain rate hardening is not demonstrated distinctly in the rage of 0.001 to 100/sec strain rate. In this
paper, tensile tests for various strain rates are performed in the rage of 0.001 to 100/sec then, specimens are extracted on the
same strain position to investigate the microscopic behavior of deformed materials. The extracted specimens are
investigated by using the electron backscattered diffraction(EBSD) and transmission electron microscopy(TEM) results
which show the effect of texture orientation, grain size and dislocation behavior on the strain rate hardening.

번호 제목 저자명 날짜 조회 수
85 Numerical Simulation of a Gun-launched Projectile Considering Rifled-gun Tube file G. Joo, H. Huh, Y. H....  2017.08.11 148
84 Modeling of a Ductile Fracture Criterion for Sheet Metal Considering Anisotropy file N. Park and H. Huh  2017.06.07 167
83 Prediction of Fracture Strains for DP980 Steel Sheets for a Wide Range of Loading Paths file N. Park, H. Huh  2015.06.15 1141
82 Investigation of springback behavior of DP780 steel sheets after the U-bending process file M.K.Choi H.Huh  2012.11.06 4659
81 Effect of Strain Rate on Anisotropic Deformation Behavior of Advanced High Strength Steel Sheets file Jeehyang Huh Hoon Huh...  2011.12.15 6081
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 5596
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 8554
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 5170
77 Forming Limit Diagram of DP590 considering the Strain Rate [1] [1] file S. B. Kim K. H. Ahn J...  2010.02.23 5732
76 Development ofAl Crash Box for High Crashworthiness Enhancement file J. S. Yoo S. B. Kim M...  2008.12.15 5135
» Microscopic Investigation of the Strain Rate Hardening for Polycrystalline Metals file J. H. Yoon H. Huh C. ...  2008.03.10 5675
74 Finite Element Inverse Analysis of the Deep Drawing Process Considering Bending History file Jeehyang Huh Jonghuh ...  2007.12.21 5042
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 6009
72 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 4678
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 4912
70 Light-weight Design with a Simplified Center-pillar Model for Improved Crashworthiness file Gihyun Bae Hoon Huh J...  2007.01.09 5067
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 4379
68 Crash Analysis of the ULSAB-AVC Model with Considering Forming Effects file H. Huh J. H. Yoon Y. ...  2006.12.11 4348
67 Stress-Based Springback Reduction of an AHSS Front Side Member file J. H. Song S. H. Kim ...  2006.08.30 4531
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 5642