Research on Numerical Algorithm of Constitutive Equation under High Speed Deformation in Hadfield Steel

Deng Yue Sun; Jing Li; Fu Cheng Zhang; Feng Chao Liu; Ming Zhang

doi:10.4028/www.scientific.net/AMR.562-564.688

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 562-564Research on Numerical Algorithm of Constitutive...

Research on Numerical Algorithm of Constitutive Equation under High Speed Deformation in Hadfield Steel

Abstract:

The influence of the strain rate on the plastic deformation of the metals was significant during the high strain rate of loading. However, it was very difficult to obtain high strain rate data (≥ 104 s-1) by experimental techniques. Therefore, the finite element method and iterative method were employed in this study. Numerical simulation was used to characterise the deformation behavior of Hadfield steel during explosion treatment. Base on experimental data, a modified Johnson-Cook equation for Hadfield steel under various strain rate was fitted. The development of two field variables was quantified during explosion hardening: equivalent stress and strain rates.

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Periodical:

Advanced Materials Research (Volumes 562-564)

Pages:

688-692

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.562-564.688

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Online since:

August 2012

Authors:

Deng Yue Sun, Jing Li, Fu Cheng Zhang, Feng Chao Liu, Ming Zhang

Keywords:

Constitutive Equation, Explosion Deformation, Hadfield Steel, Numerical Simulation

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References

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