저자명 Yanshan Lou Hoon Huh 
Journal International Journal of Solids and Structures 
Volume 50 
Number
Pages 447-455 
year 2013 
This paper is concerned with the extension of a shear-controlled ductile fracture criterion for accurate
prediction of fracture forming limit diagrams (FFLD) in sheet metal forming processes. A shear-controlled
ductile fracture criterion is extended to a general three-dimensional stress space with dependence on the
stress triaxiality and the Lode parameter. The underlying mechanisms of Lode parameter dependence of
ductile fracture are first correlated to the effect of the maximum shear stress on shear-coalescence of
voids. The effect of the stress triaxiality and the Lode parameter on the equivalent plastic strain to fracture
is investigated in the space of ðg; L; eÞ. For the purpose of comparison, the Mohr–Coulomb criterion is also
transformed into the space of ðg; L; eÞ using the technique of the Mohr’s circles. Both criteria are applied to
construct fracture loci of Al 2024-T351. Fracture loci constructed are compared to experimental data
points to validate the performance of two criteria. The comparison demonstrates that fracture loci
constructed by two criteria are close to experimental results except for two data points in the high stress
triaxiality. The big difference between two criteria is that a cut-off value for the stress triaxiality is extremely
small for the Mohr–Coulomb criterion while the new ductile fracture criterion endows a constant
cut-off value of 1/3 which is reasonable for ductile materials. Due to this limitation of the Mohr–Coulomb
criterion, the new criterion is more suitable to model ductile fracture in metal forming processes.
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...  2017.06.07 151
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 95
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 96
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
116 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 3951
107 Material Behaviors of PBX Simulant with Various Strain Rates [1] file Chunghee Park Sehwan ...  2013.01.08 5914
» Extension of a shear-controlled ductile fracture model considering the stress triaxiality and the Lode parameter file Yanshan Lou Hoon Huh  2012.12.11 5274