Experimental Development of Johnson-Cook Strength Model for Different Carbon Steel Grades and Application for Single-Pass Hot Rolling
Johnson-Cook (JC) high-temperature strength material models have been widely used in finite-element analysis (FEA) to solve variety of hot rolling problems. Herein, the temperature- and strain rate-related parameters of JC model are experimentally calibrated for eight different steel grades including SAE 1018 and SAE 1045, structural steels (ASTM A572-60, ASTM A690, and ASTM A992), two V-modified 1535/45 grades, and one automotive advanced high-strength steel grade. Experimental data are obtained from tensile tests performed at strain rates from 0.001 to 20 s-1 and at temperatures between 900 and 1200 °C. A genetic algorithm approach is used to determine JC model parameters for different steel chemistries and to calculate the rolling pressure for a simple flat rolling process using both a common analytical formulation and a finite-element model (FEM). A model for the effects of steel chemistry on the JC model parameters is also discussed.
M. F. Buchely et al., "Experimental Development of Johnson-Cook Strength Model for Different Carbon Steel Grades and Application for Single-Pass Hot Rolling," Steel Research International, vol. 91, no. 7, Wiley-VCH Verlag, Jul 2020.
The definitive version is available at https://doi.org/10.1002/srin.201900670
Materials Science and Engineering
Mechanical and Aerospace Engineering
Peaslee Steel Manufacturing Research Center
Second Research Center/Lab
Center for High Performance Computing Research
Third Research Center/Lab
Intelligent Systems Center
Keywords and Phrases
Carbon Steels; Finite-Element Modeling; High-Temperature Tensile Test; Johnson-Cook Strength Model
International Standard Serial Number (ISSN)
Article - Journal
© 2020 Wiley-VCH Verlag, All rights reserved.
01 Jul 2020