Experimental and Numerical Study of Uniaxial and Multiaxial Stress-Strain Behaviour of R7T Wheel Steel

Radim Halama; Michal Šofer; František Fojtík; Aleksandros Markopoulos

doi:10.4028/www.scientific.net/AMM.732.91

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 732Experimental and Numerical Study of Uniaxial and...

Experimental and Numerical Study of Uniaxial and Multiaxial Stress-Strain Behaviour of R7T Wheel Steel

Abstract:

This paper is focused on the correct description of stress-strain behavior of the R7T steel. An experimental study on the wheel steel specimens including uniaxial as well as multiaxial tests has been conducted. The main attention was paid to such effects as ratcheting and nonproportional hardening of the material. A cyclically stable behavior of the steel under higher amplitude loading was found. The MAKOC model, which is based on AbdelKarim-Ohno kinematic hardening rule and Calloch isotropic hardening rule, has been applied in subsequent finite element simulations. The numerical results show very good prediction of stress-strain behaviour of the wheel steel.

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Periodical:

Applied Mechanics and Materials (Volume 732)

Pages:

91-94

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.732.91

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Online since:

February 2015

Authors:

Radim Halama*, Michal Šofer, František Fojtík, Aleksandros Markopoulos

Keywords:

Additional Hardening, Cyclic Plasticity, FEM, Nonproportional Loading, Ratcheting

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References

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