The finite element method based on Johnson-Cook (J-C) model has become an effective method to assist the experimental study of material impact toughness. In this paper, model parameters of J-C constitutive relation and damage parameters of J-C failure model for X80 pipeline steel have been ...
Low carbon C1010 steel is characterized under tension and torsion to determine Johnson-Cook (J-C) strength model constants. Constitutive model constants ar... N Brar,V Joshi,B Harris - American Physical Society 被引量: 7发表: 2007年 Modeling of Hot Deformation Behavior of 55SiMnMo Medium-Carb...
The parameter space involved two sets of Johnson-Cook model parameters for RHA, two sets of Johnson-Cook parameters for the tungsten rod material, four tungsten rod length-to-diameter (L/D) ratios, and two continuum mechanics codes. Striking velocities considered in the study ranged from ...
INFLUENCE OF THE JOHNSON COOK MATERIAL MODEL PARAMETERS AND FRICTION MODELS ON SIMULATION OF ORTHOGONAL CUTTING PROCESS In the recent past, Finite Element (FE) modeling has emerged as one of the most effective tools that could substitute the conventional time consuming and e... A Priyadarshini,SK...
Sam Johnson - Cotapaxi, Colorado, USA 2004 A.Hi Sam. "Pickling" is not actually a "trade name" (which I consider to be like a trademark but without discussing the legality of the claim to ownership of the word), it is the name for the generic industrial process of removing mill scal...
Johnson–Cook strength modelJohnson〤ook (JC) high temperature strength material models have been widely used in Finite Element Analysis (FEA) to solve variety of hot rolling problems. In this paper, the temperature and strain rate related parameters of JC model were experimentally calibrated for ...
The data obtained by the Kolsky method were used to determine the parameters of the Johnson-Cook model which, in the framework of the theory of flow, describes how the yield surface radius depends on the strain, strain rate, and temperature. 展开 关键词:...
Parameters of Johnson–Cook model b Burgers vector Cp Specific heat ft Feed per tooth Fx, Fy Cutting forces in x- and y-direction G Shear modulus h Primary shear zone thickness i Inclination angle k Shear flow stress Ktc, Krc, Kac Cutting force coefficients Kte, Kre, Kae Ploughing force ...
Ductile damage parameters determination for two RPV steels, austenitic and ferritic, was performed here with the use of Johnson–Cook, Rice–Tracey and Bai–Wierzbicki models. The obtained material models were subsequently applied to simulation of notched CT fracture toughness specimens and the results...
The Johnson–Cook formulation has been somewhat Numerical results and discussion The present numerical simulations of the penetration process were conducted on the 2.0 GHz single CPU computer 1 GB of Ram. In the case of the Lagrangian technique, the run took about 2.5 hour CPU time for the 50...