Micromechanical Modeling of Elastic-Viscoplastic Behavior of Armco-Fe at High Strain Rate

Z. Huang, H. Wang, Q. Wang, Muhammad Kashif Khan

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    3 Citations (Scopus)


    Heterogeneous dynamical stress-strain response of Armco-Fe was investigated at high strain rates through the Split Hopkinson Pressure Bar (SHPB) testing. It was found that the viscoplastic deformation in BCC ferrite grains is affected by the strain rate. Thermal softening and variation in crystal orientations under high-strain-rate loading were used in the elastic-viscoplastic modeling. The micromechanical analysis with self-consistent transition and homogenization was used for estimation of the global impact response of the material. The results from modeling were found in good agreement with the experimental data.
    Original languageEnglish
    Pages (from-to)655-662
    JournalActa Mechanica Solida Sinica
    Issue number6
    Publication statusPublished - 29 Dec 2016

    Bibliographical note

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    • Armco-Fe
    • high strain rate
    • visco-plastic deformation
    • self consistent
    • SHPB


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