저자명 M. K. Choi, H. Huh, C. G. Kim, K. S. Chae 
Name 2014 KSTP spring conference 
Year 2014 

In the last years, a growing interest of lightweight vehicle design could be observed in the automotive industry. This
trend is related to an increasing interest in substituting steel parts by lightweight material such as magnesium alloy.
However, evaluation of the crashworthiness should be considered for lightweight vehicle as crash safety becomes more
stringent. In order to evaluate the crashworthiness of auto-body structure, finite element methods has been conducted for
crash analysis. Generally, strain rates distribution of auto-body structure in the car crash is ranging from 0.001/s to 500/s.
Since the material properties depend on the strain rates, the dynamic behavior of magnesium alloy sheet must be
examined and applied to the finite element model appropriately. This paper is concerned with the evaluation of standard
uncertainty of high speed tensile properties of AZ31 sheet considering correlation effect during the measurement.
Standard uncertainty of the true stress is evaluated considering sources of uncertainties of input quantities and their
associated sensitivity coefficients using modified uncertainty evaluation model considering correlation. The results show
that the standard uncertainty decreases when correlation is applied to uncertainty evaluation procedure.

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 7905
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 6328
248 Prediction of fracture in a hub-hole expansion with a defected-edge model file J. S. Lee H. Huh  2005.11.29 6138
247 Dynamic Material Properties of an Armor Plate Material for an Armored Vehicle file Jiwoong Ha Kwanghyun ...  2012.06.27 6134
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 5759
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
238 Anisotropy Effect on the Fracture Strain of DP980 Sheets [1] file Namsu Park, Sung Jun ...  2013.08.29 5325
237 Microscopic Investigation of the Strain Rate Hardening for Metals file J. H. Yoon H. Huh C. ...  2007.10.14 5315