Anisotropy Effect on the Fracture Strain of DP980 Sheets

2013.08.29 12:44

csmd 조회 수:5328

저자명 Namsu Park, Sung Jun Lim, and Hoon Huh 
Name Proceedings of KSAE 2013 Annual Conference 
Year 2013 
page 1661-1664 
This paper is concerned with the anisotropy effect of DP980 sheets on the fracture strain. The use of advanced highstrength steels (AHSS) for automotive applications gradually increases since AHSS generally has high strength as well as high formability from their high strain hardening capabilities. In sheet metal forming, the anisotropy effect on the fracture strain should be also taken into consideration to reflect the fracture behavior of materials more properly since they show different mechanical behavior resulting from their crystallographic structure and the characteristics of rolling process. In order to investigate the influence of the loading path on the fracture strain, three different types of tests were conducted to the fracture including uniaxial tensile tests on classic dog-bone specimens, pure shear specimens, and plane strain grooved specimens. Each specimen was made along three different orientations: the angle of 0° (rolling direction, RD), 45° (diagonal direction, DD), and 90° (transverse direction, TD) with respect to the rolling direction of sheet metal to consider the anisotropy effect on the fracture strain. The fracture strain was evaluated to vary with the different orientation of sheet metal and each loading path.
번호 제목 저자명 날짜 조회 수
256 Dynamic Hardening Equation for Metallic Materials with the Variation of Crystalline Structures file Kwanghyun Ahn Hoon Hu...  2012.06.07 8918
255 Effect of the Measurement Uncertaintty of Dynamic Tensile Properties on Dynamic Buckling Analysis of a Circular Tube file Sehwan Jeong Hoon Huh  2012.08.06 8364
254 Evolution of yield surface of SPCC steel sheet at different strain rates file Jeehyang Huh Hoon Huh  2012.05.29 7906
253 Investigation of springback behavior of DP780 steel sheets [1] file M.K.Choi H.Huh  2012.06.08 7482
252 Evaluation of Ductile Fracture Criteria in Full Stress States file Yanshan Lou, Mingjun...  2013.02.01 6759
251 A New Tangent Stiffness for Anisotropic Elasto-Viscoplastic Analysis of Polycrystalline Deformations file J. H. Yoon H. Huh Y. ...  2006.12.11 6499
250 User Defined Material Model in LS-DYNA for Numerical Simulations of PBX Simulants file Chunghee Park Hoon Hu...  2013.08.30 6345
249 Effect of Tensile Speed on the Failure Load of Laser Welding under Combined Loading Conditions [2] file Jiwoong Ha Hoon Huh S...  2012.06.27 6329
248 Prediction of fracture in a hub-hole expansion with a defected-edge model file J. S. Lee H. Huh  2005.11.29 6139
247 Dynamic Material Properties of an Armor Plate Material for an Armored Vehicle file Jiwoong Ha Kwanghyun ...  2012.06.27 6135
246 Characteristics Analysis of the High Performance Damper-Strut Module file Youn-Ki Ko Jung-Han S...  2006.06.14 6113
245 Effect of Deformation Twinning on Strain Hardening in Titanium file Kwanghyun Ahn Hoon Hu...  2012.06.04 5819
244 Application of Ductile Fracture Criteria for the FLD Prediction of Steel Sheets file Yanshan Lou Soekbong ...  2010.12.27 5760
243 Development of Braking System for Railway Vehicle Using Progressive Compression Process file Kwanghyun Ahn Youn Ki...  2011.12.15 5698
242 Forming Limit Diagram of Advanced High Strength Steel Sheets for High-Speed Sheet Metal Forming file S. J. Lim, S. B. Kim...  2012.05.29 5680
241 Quasi-Static Failure of Spot Welds of AHSS under Combined Loading Conditions file Jiwoong Ha Hoon Huh H...  2011.04.01 5678
240 Finite Element Stress Analysis of the Tire Contact Problem file H. Huh Y. K. Kwak Y. ...  2005.11.29 5617
239 Railway Buffer Stop Using Progressive Compression Process file Kwanghyun Ahn Youn Ki...  2010.12.24 5367
» Anisotropy Effect on the Fracture Strain of DP980 Sheets [1] file Namsu Park, Sung Jun ...  2013.08.29 5328
237 Microscopic Investigation of the Strain Rate Hardening for Metals file J. H. Yoon H. Huh C. ...  2007.10.14 5315