Abstract This paper presents stress-strain curves of steel sheets for an auto-body obtained at intermediate strain rates with a servo-hydraulic type high speed tensile testing machine. The apparatus has the maximum stroke velocity of 7.8 m/sec to obtain the tensile material properties at a strain rate of up to 500/sec. A special jig fixture is specially designed for accurate acquisition of tensile loads with reduction of the load-ringing phenomenon induced by unstable stress wave propagation at high strain rates. Tensile testing of steel sheets for an auto-body was carried out to obtain stress-strain curves of mild steel and advanced high strength steels at strain rates ranged from 1/sec to 200/sec. The test results provide interesting information regarding the stress-strain curves at intermediate strain rates ranged from 1/sec to 200/sec and demonstrate that strain rate hardening is strongly coupled with strain hardening.


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    Titel :

    High speed tensile test of steel sheets for the stress-strain curve at the intermediate strain rate


    Beteiligte:
    Huh, H. (Autor:in) / Lim, J. H. (Autor:in) / Park, S. H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2009




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Klassifikation :

    BKL:    55.20$jStraßenfahrzeugtechnik / 55.20 Straßenfahrzeugtechnik




    High speed tensile test of steel sheets for the stress-strain curve at the intermediate strain rate

    Huh, H. / Lim, J. H. / Park, S. H. | British Library Online Contents | 2009


    Dynamic Tensile Testing and FEA Simulation for Determining the Stress-Strain Curve at Different Strain rate

    Mansilla, A. / Regidor, A. / Garcia, D. et al. | British Library Conference Proceedings | 2000