저자명 Yanshan Lou Seokbong Kim Changsoo Lee Hoon Huh 
Name Proceedings of AEPA 2010 
Place China 
Year 2010 
This paper analytically investigates forming limit diagrams (FLDs) of advanced high
strength steel DP590 using the Marciniak-Kuczynski model (M-K model) with the strain
rate effect. Tensile tests at various strain rates were conducted to obtain the strain
hardening and strain rate hardening properties of DP590. The Johnson-Cook model was
used to interpolate the experimental data with the strain rate effect. The FLDs of DP590
were then predicted with the M-K model. The material was assumed to be rigid-plastic
and subjected to the flow rule based on the Hosford79 yield criterion. Punch stretching
tests were conducted to verify the analytical results with different punch velocities to
investigate the effect of the forming speed on formability. The analytical model without
the strain rate effect underestimated the forming limits of DP590. The computed FLDs
with the strain rate effect show good agreement with the experimental result especially
when the exponent in the Hosford79 yield criterion is 8 for static forming and 10 for
dynamic forming.
번호 제목 저자명 날짜 조회 수
116 Tension/compression test of auto-body steel sheets with the variation of the pre-strain and the strain rate file G. H. Bae H. Huh  2011.07.04 5449
115 Measurement of R-values at Intermediate Strain Rates using a Digital Speckle Extensometry file J. Huh Y.J. Kim H. Huh  2011.07.04 4897
114 Strain-Rate Dependent R-Values of Advanced High Strength Steel Sheets file J. Huh H. HUh  2011.07.04 5158
113 Simulation-based Design Guideline for the Twisting Process of a Single-layer Steel Cord file B. H. Lee J. D. Im G....  2011.07.04 4530
112 Quality Evaluation of a Single-layer Steel Cord Using the Simplified Simulation Method of the Roller Straightening Process file G. H. Bae H. Huh B. H...  2011.07.04 4816
111 MECHANICAL CHARACTERISTICS OF PBX SIMULANT CONSIDERING STRAIN RATE EFFECT file Chunghee Park Sehwan ...  2011.07.04 7983
110 Construction of a Failure Model of Spot Welds Using Lap-Shear Tests file Jiwoong Ha Yujong Kim...  2011.04.01 5222
109 Compatible Finite Element Modeling of Laser-Welded Region for Crash Analysis of Auto-Body Assemblies file Jiwoong Ha Hoon Huh Y...  2011.04.01 4669
108 The Intermesh Effect on the Roller Straightening Process Of a Single-layer Steel Cord file Gihyun Bae Hoon Huh J...  2011.03.22 4815
107 Compressive Behavior of PBX Simulant at Various Strain Rates file Sehwan Jeong Chunghee...  2011.03.16 4809
» Prediction of forming limit diagrams of DP590 steel based on the M-K model with experimental verification file Yanshan Lou Seokbong ...  2010.12.27 6751
105 Material Properties of PBX Simulant Considering Strain Rate Effect file Chunghee Park Sehwan ...  2010.12.22 7236
104 Effect of the Yield Stress and r-value Distribution on the Earing Profile of Cup Drawing with Yld2000-2d Yield Function file Yanshan Lou Gihyun Ba...  2010.07.14 7397
103 Accuracy Analysis of Anisotropic Yield Functions based on the Root-Mean Square Error file Hooh Huh Yanshan Lou ...  2010.07.14 5225
102 Evaluation of Crash Energy Absorption Capacity of a Tearing Tube file Younki Ko Kwanghyun A...  2010.07.06 4955
101 Determination of True Stress-True Strain Curves of Auto-body Plastics file Chunghee Park Jinsung...  2010.07.06 5604
100 Construction of the Hill48 and Yld89 for Auto-body Steel Sheets considering the Strain Rate file C. S. Lee G. H. Bae S...  2010.04.20 5548
99 Characterization of dynamic tensile and shear strength of safety bolts in light collision safety devices of a train file J. S. Kim, H. Huh T...  2010.01.14 4587
98 Design of HEV-Relay Using Response Surface Method to Improve Bounce Characteristics file Youn Ki Ko, Sang Soon...  2009.12.17 4402
97 Effects of forming speed on the springback using finite element methods file Yanshan Lou, Jin Sun...  2009.12.03 4945