A series of cyclic tension-torsion tests under symmetric shear strain and asymmetric axial stress control in various loading paths are conducted on 100 ?m-diameter 316L steel wires applying a micro tensiontorsion fatigue testing apparatus. The ratcheting strain of the thin wire increases with increasing axial mean stress and decreases in a sequence of linear, rhombic and circular paths. The macro-scale based cyclic plastic constitutive models with kinematic hardening rules of the Ohno-Wang (OW) and the Chen-Jiao-Kim (C-J-K) are evaluated for the thin wire. Comparing with the O-W, the C-J-K predicts more accurately under high axial stress. While the loading path effects on ratcheting for wire specimens are basically simulated, the macro-based models tend to under-estimate the effect of phase difference between axial and torsional loadings and the ratcheting evolution in the initial 50 cycles.


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    Titel :

    Ratcheting of 316L stainless steel thin wire under tension-torsion loading


    Beteiligte:
    Fu, Sichao (Autor:in) / Yu, Dunji (Autor:in) / Chen, Xu (Autor:in)

    Erscheinungsdatum :

    2016-10-03


    Anmerkungen:

    Frattura ed Integrità Strutturale; Vol. 10 No. 38 (2016): October 2016; Pages 141-147 ; Frattura ed Integrità Strutturale; V. 10 N. 38 (2016): October 2016; Pages 141-147 ; 1971-8993


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    621 / 629



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