저자명 Hoon Huh, Kwanghyun Ahn, Ji Ho Lim, Hyung Won Kim, Lee Ju Park 
Journal Jornal of Materials Processing Technology 
Volume 214 
Number  
Pages 1326-1340 
year 2014 

This paper is concerned with dynamic hardening models of metallic materials for various crystallinestructures. The dynamic response of metallic materials is indispensable for the analysis of deformationin the high-speed condition. The description of the dynamic behavior, however, can be hardly suggestedwith a unique model that is capable of representing the dynamic hardening characteristics of all typesof materials because the dynamic hardening behavior of a material is inherent characteristics which aredifferent in materials. It is important to select the most adequate model that is capable of representingthe dynamic hardening characteristics of a material accurately.

In this paper, the fitting characteristics of several well-known models are investigated and verifiedby experiments at a wide range of strain rates. By comparing the characteristics of the models withexperimental results, the effective selecting of the most adequate model has been carried out to applyexperimental stress–strain curves to the numerical analysis accurately and effectively. Several hardeningmodels reported have been investigated and evaluated using the dynamic hardening characteristics ofthree kinds of materials: 4340Steel (BCC); OFHC (FCC); and Ti6Al4V (HCP). Three well-known modelshave been constructed and evaluated for the Johnson–Cook model, the Zerilli–Armstrong model, and thePreston–Tonks–Wallace model using the test results of three materials. Several models suggested by theauthors have also been compared for the modified Johnson–Cook model and the modified Khan–Huangmodel. Another novel dynamic hardening model is newly proposed and compared to the other models.The changes in the strain rate and the temperature during the deformation process were considered forthe accurate application of the hardening models. The most applicable model for each material has beensuggested by comparison of results investigated.

번호 제목 저자명 날짜 조회 수
125 Evaluation of the Ductile-to-Brittle Transition Temperature of a silicon steel under various strain rate conditions with a servo-hydraulic high speed testing machine file Junbeom Kwon, Hoon Hu...  2017.06.07 150
124 Tension/compression hardening behaviors of auto-body steel sheets at intermediate strain rates file Geunsu Joo, Hoon Huh,...  2017.06.07 102
123 Evaluation of the effect of the strain rate on the tensile properties of carbon–epoxy composite laminates file J. Kwon, J. Choi, H. ...  2017.06.07 94
122 Material properties of the nugget zone in resistance spot-welded DP980 steel joint at various strain rates file N. Park, M. Park, J.B...  2017.06.07 105
121 Fracture-based Forming Limit Criteria for Anisotropic Materials in Sheet Metal Forming file N. Park, H. Huh, S.J....  2017.06.07 88
120 Process design of combined deep drawing and electromagnetic sharp edge forming of DP980 steel sheet file M.K. Choi, H. Huh, an...  2017.06.07 95
119 Fracture modelling of DP780 sheets using a hybrid experimental-numerical method and two-dimensional digital image correlation file Keunhwan Pack, Kwangh...  2015.12.01 1534
118 Tensile Properties of Sheet Metals at Intermediate Strain Rates with Pre-Strain file S. B. Kim and H. Huh  2015.11.18 1180
117 Anisotropy Effect on the Fracture Model of DP980 Sheets Considering the Loading Path file N. PARK, H. HUH, J. B...  2015.06.15 1682
» Evaluation of dynamic hardening models for BCC, FCC,and HCP metals at a wide range of strain rates Hoon Huh, Kwanghyun A...  2015.02.16 2166
115 Specimen and Grain Size Effects of Al1100 on Strain and Strain Rate Hardening at Various Strain Rates for Al1100 file Junbeom Kwon, Hoon Hu...  2014.08.20 2704
114 Rate-dependent hardening model for polymer-bonded explosives with an HTPB polymer matrix considering a wide range of strain rates file Chunghee Park, Hoon H...  2014.04.11 3630
113 New pseudo-elastic model for polymer-bonded explosive simulants considering the Mullins effect file Kee Sun Yeom Sehwan J...  2013.12.10 3957
112 A Phenomenological energy-based Model for PBX Simulants Considering the Mullins Effect file Kee Sun Yeom Sehwan J...  2013.12.10 3392
111 Strain Hardening Model of Pure Titanium Considering Effects of Deformation Twinning file Kwanghyun Ahn, Hoon H...  2013.09.16 3922
110 Prediction of ductile fracture for advanced high strength steel with a new criterion: Experiments and simulation file Yanshan Lou Hoon Huh  2013.04.08 5703
109 Effect of strain rate on plastic anisotropy of advanced high strength steel sheets file Jeehyang Huh Hoon Huh...  2013.04.02 3723
108 Consideration of strength differential effect in sheet metals with symmetric yield functions file Yanshan Lou Hoon Huh ...  2013.03.21 3950
107 Material Behaviors of PBX Simulant with Various Strain Rates [1] file Chunghee Park Sehwan ...  2013.01.08 5914
106 Extension of a shear-controlled ductile fracture model considering the stress triaxiality and the Lode parameter file Yanshan Lou Hoon Huh  2012.12.11 5273