저자명 K. Ahn H. Huh L. Park 
Name DAPS2012 
Place Jeju, Korea 
Year 2012 
This paper is concerned with dynamic hardening equations of metallic materials with various crystalline structures. There is no unique equation which can represent the dynamic hardening characteristics of all kinds of materials although various dynamic hardening equations have been suggested by many researchers. Dynamic hardening equations reported have been investigated using the dynamic hardening characteristics of three kinds of materials: 4340Steel (BCC); OFHC (FCC); and Ti6Al4V (HCP). Dynamic hardening characteristics of each material have been obtained by uniaxial tensile tests and SHPB tests. Uniaxial tensile tests have been performed with the variation of the strain rate from 0.001/sec to 100/sec and SHPB tests have been conducted at the strain rate range up to 4000/sec. Several existing models have been constructed and evaluated for Johnson-Cook model, Zerilli-Armstrong model, Preston-Tonks-Wallace model, modified Johnson-Cook model, and modified Khan-Huang model using test results of three materials. Strain rate hardening and thermal softening effect during the deformation process were investigated for accurate evaluation of hardening equations. The most applicable equation for each material has been suggested by comparison of constructed results.
번호 제목 저자명 날짜 조회 수
136 Development of Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle file Kwanghyun Ahn Hoon Hu...  2012.12.10 7801
135 Effect of Tensile Speed on the Failure Load of Laser Welding under Combined Loading Conditions file Jiwoong Ha Hoon Huh K...  2012.12.10 5190
134 Dynamic Failure Characteristics of Electric Resistance Spot Welds in DP Steel Sheets [2] file Jiwoong Ha Hoon Huh J...  2012.12.10 9036
133 Rate-dependent two-surface model for cyclic hardening behaviour of advanced high strength steel sheets file Jeehyang HUh Hoon Huh...  2012.11.06 7216
132 Quantification of Material Properties of Structural Materials for Warhead at Various Strain Rates file Kwanghyun Ahn Hoon Hu...  2012.09.26 7418
131 Evaluation of Dynamic Hardening Models for Metallic Materials at Wide Range of Strain Rates file Hoon Huh Kwanghyun Ah...  2012.09.26 7486
130 Compressive Characteristics of PBX Simulant with the Variation of the Strain Rate file Chunghee Park, Sehwan...  2012.09.21 8958
129 Pulse Shaping Techniques for Soft Materials in Split Hopkinson Pressure Bar Tests file Chunghee Park Hoon Hu...  2012.07.13 6381
128 Effect of Strain Rate on the Material Characteristics of a Fragment-Simulating Warhead and an Armor Plate file Jiwoong Ha Hoon Huh K...  2012.06.27 7130
» Dynamic Hardening Equations of Metallic Materials with the Variation of Crystalline Structures file K. Ahn H. Huh L. Park  2012.06.22 5581
126 Micro-Tensile Tests of Aluminum Thin Foil with the Variation of Strain Rate file J.B. Kwon J. Huh H. H...  2012.06.19 7542
125 Comparison of Dynamic Hardening Equations for Metallic Materials with the Variation of Crystalline Structures file K. Ahn H. Huh L. Park  2012.05.07 5778
124 Variational Time Integrators for Handling Discontinuous Interfaces in Solids file S. J. Lim S. S. Cho H...  2012.03.20 8149
123 Limit dome height prediction based on a new ductile fracture criterion file Yanshan Lou Hoon Huh ...  2012.01.11 5844
122 Formability Prediction of Advanced High Strength Steel with a New Ductile Fracture Criterion file Yanshan Lou Sungjun L...  2012.01.11 5701
121 Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle Kwanghyun Ahn Hoon Hu...  2011.12.22 7701
120 Failure Characteristics of Spot Welds of AHSS under Quasi-static Conditions file J. Ha H. Huh H. Lee K...  2011.12.15 5545
119 Standard Uncertainty Evaluation for Dynamic Tensile Properties of Auto-body Steel Sheets Sehwan Jeong Hoon Hu...  2011.12.13 4978
118 A Method For Treating Temporal And Spatial High Gradient Phenomena In The Dynamics Of Solids K.C. Park S.j. Lim H....  2011.08.03 4946
117 Cyclic tension/compression test of auto-bod steel sheets with the variation of the strain rate file G. H. Bae H. Huh  2011.07.04 5033