Počet záznamů: 1  

Identification of stress-strain relation of aluminium foam cell wall by spherical nanoindentation

  1. 1.
    0428836 - ÚTAM 2015 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
    Králík, V. - Němeček, J. - Koudelka_ml., Petr
    Identification of stress-strain relation of aluminium foam cell wall by spherical nanoindentation.
    Key Engineering Materials. Vol. 606. Durnten-Zurich: Trans Tech Publications, 2014 - (Haušild, P.), s. 11-14. ISBN 978-3-03835-062-0. ISSN 1013-9826.
    [Local Mechanical Properties /10./. Kutná Hora (CZ), 06.11.2013-08.11.2013]
    Grant CEP: GA ČR(CZ) GAP105/12/0824
    Institucionální podpora: RVO:68378297
    Klíčová slova: aluminium foam * spherical nanoindentation * micromechanical properties * plastic properties
    Kód oboru RIV: JI - Kompozitní materiály
    http://www.scientific.net/KEM.606.11

    The aim of this paper is to identify, in addition to elastic properties, inelastic properties of tiny aluminium foam cell walls that can be directly deduced from the loaddepth curves of spherical indentation tests using formulations of the representative strain and stress. Constitutive parameters related to plastic material with linear isotropic hardening, the yield point (122 ± 17 MPa) and tangent modulus (950 ± 377 MPa), were obtained in this work. Spherical indentation and uniaxial tension experiments have also been performed on a standard aluminium alloy EN AW 6060 to explore the accuracy of the analytical models used to predict the uniaxial stressstrain in wide strain ranges. Some deviations received from different tests arose and, therefore, their effect on the evaluation of inelastic properties was discussed.
    Trvalý link: http://hdl.handle.net/11104/0234145

     
     
Počet záznamů: 1  

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