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Identification of Parameters of the Feigenbaum-Dafalias Directional Distortional Hardening Model

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    0439653 - ÚT 2015 RIV CZ eng C - Conference Paper (international conference)
    Parma, Slavomír - Plešek, Jiří - Hrubý, Zbyněk - Marek, René - Feigenbaum, H. P. - Dafalias, Y.F.
    Identification of Parameters of the Feigenbaum-Dafalias Directional Distortional Hardening Model.
    Engineering Mechanics 2013. Prague: Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v. v. i., 2013 - (Zolotarev, I.), s. 426-437. ISBN 978-80-87012-47-5. ISSN 1805-8256.
    [Engineering Mechanics 2013 /19./. Svratka (CZ), 13.05.2013-16.05.2013]
    R&D Projects: GA ČR GA101/09/1630
    Keywords : plasticity * directional distortional hardening * identification
    Subject RIV: BJ - Thermodynamics

    Distortion of yield surface was observed in numerous experiments with various types of metals. The distorted surface shows high curvature in the direction of load and flattening in the opposite direction. Feigenbaum and Dafalias (2008) proposed a new phenomenological model to capture this phenomenon. In sum, Feigenbaum-Dafalias directional distortional model includes six independent material parameters to be identified. The present paper describes an identification algorithm for parameters of the model.
    Permanent Link: http://hdl.handle.net/11104/0242874

     
     
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