Under certain conditions, metals and other solids deform plastically. There are two conditions which promote plastic deformation: the condition of stress and the mechanism which determines how that deformation takes place. The critical condition of stress which produces yielding is due to the net effect of the combination of stresses acting at a point. A mathematical theory which predicts the critical condition of stress for which plastic flow occurs is a yield criterion.A new yield criterion is introduced. It is hyperbolic in form so it is significantly different from the criteria developed by Rankine, Tresca, Saint-Venant, or von Mises. But like these criteria, the new yield condition is also limited to a biaxial stress condition.The new yield criterion, because of its form, serves as an instructive model for the development of an analytical equation of equivalent form. As a result, the new yield criterion can be interpreted as an energy equation which includes a mechanism related to how metals flow plastically. This mechanism can be related to small angle (gonio) distortions which develop in materials according to a pattern or form (morphous) that is either fixed or controlled by the basic structure of the material and the condition of stress. As a result, this new criterion is identified as a goniomorphous yield criterion.The analytical equation is used as a pattern for two additional yield criteria. These new criteria predict yield for a three-dimensional condition of stress for two different deformation patterns.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Yield Criteria for Predicting the Strength of Metals


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1974 Automotive Engineering Congress and Exposition ; 1974



    Erscheinungsdatum :

    01.02.1974




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Enhancement of yield criteria considering anisotropic behaviors of sheet metals

    Hu,W. / Liu,S.D. / Troy Design a.Manufacturing,US et al. | Kraftfahrwesen | 2002


    Enhancement of Yield Criteria Considering Anisotropic Behaviors of Sheet Metals

    Liu, S.-D. / Hu, Weilong | SAE Technical Papers | 2002


    Enhancement of Yield Criteria Considering Anisotropic Behaviors of Sheet Metals

    Hu, W. / Liu, S.-D. / Society of Automotive Engineers | British Library Conference Proceedings | 2002


    Predicting Yield Behaviors

    ZHAO YUE / OSTAFEW CHRISTOPHER | Europäisches Patentamt | 2019

    Freier Zugriff

    Predicting yield behaviors

    ZHAO YUE / OSTAFEW CHRISTOPHER | Europäisches Patentamt | 2020

    Freier Zugriff