The maximum equivalent plastic strain (EPSmax), which can be achieved in the gauge region of a cruciform specimen during in-plane biaxial tensile tests, is limited due to early fracture on the cruciform specimen arm. In this paper, a theoretical model was proposed to determine the factors related to the EPSmax of a cruciform specimen following ISO 16842: 2014. Biaxial tensile tests were carried out to verify the theoretical analyses. Results show that the material strength coefficient (k) has no effect on the EPSmax, and EPSmax increases with the increase of the material hardening exponent (n) and the cross-sectional-area ratio (c) of the arm region to the gauge region. It is found that the applied load ratio (α) has an effect on EPSmax, which decreases as the load ratio increases from 0:1 (i.e. uniaxial tension) to 1:2 (i.e. plane strain state) and then increases as the load ratio increases to 1:1 (i.e. balanced biaxial tension).


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    Titel :

    Investigation of Factors Controlling the Attainable Equivalent Plastic Strain in the Gauge Region of Cruciform Specimens


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Zhu, Chuanmin (Autor:in) / Tang, Huijun (Autor:in) / Lin, Jianping (Autor:in) / Carsley, John E. (Autor:in) / Min, Junying (Autor:in) / Deng, Lulu (Autor:in) / Hou, Yong (Autor:in)

    Kongress:

    WCX World Congress Experience ; 2018



    Erscheinungsdatum :

    2018-04-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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