Study on Calibration for Parameters of Johnson-Cook Constitutive Equation

Abstract:

Procedure of determination for parameters of Johnson-Cook model, which is widely used in numerical computation and design for manufacture process, is made. The paper describes fundamental investigation of Johnson-Cook constitutive equation firstly, then quasi-static compression experiment MTS is reviewed briefly, and dynamic compression experiment SHPB is studied from all aspects of experimental principle of one dimension stress wave, experimental measurement system to experimental data handling. In the end methods of Calibration for A, B, n, C and m of Johnson-Cook constitutive model’s parameters are discussed in details.

• Periodical: Advanced Materials Research (Volume 337)
• Pages: 645-649
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.337.645
• Online since: September 2011
• Authors: Jian Guang Li, Jie Dong Cao
• Keywords: Impact Compression Test Shpb, Johnson-Cook Constitutive Equation, Material Parameters for Numerical Simulation, Parameters Calibration, Quasi-Static Test MTS

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