Počet záznamů: 1

Time-dependent mechanical characteristics measured through the use of a microindentation technique

  1. 1.
    0350945 - UTAM-F 2011 RIV NL eng J - Článek v odborném periodiku
    Minster, Jiří - Bláhová, O. - Lukeš, J. - Němeček, J.
    Time-dependent mechanical characteristics measured through the use of a microindentation technique.
    Mechanics of Time-Dependent Materials. Roč. 14, č. 3 (2010), s. 243-251 ISSN 1385-2000
    Grant CEP: GA AV ČR(CZ) IAA200710801
    Výzkumný záměr: CEZ:AV0Z20710524
    Klíčová slova: materials testing * microindentation * viscoelastic compliance * relaxation modulus
    Kód oboru RIV: JI - Kompozitní materiály
    Impakt faktor: 0.955, rok: 2010

    Under accepted simplifications about the linear viscoelastic background of the problem and the time-independent value of the Poisson’s ratio, this paper aims to compare the short-term histories of the viscoelastic functions of a common time-dependent material, e.g. viscoelastic compliance and relaxation modulus measured using a microindentation technique, with data derived from standard macro measurements. Two nano/microindenters were used (Hysitron Triboscan and Nano XP Indenter) at two different laboratories. Four special time-dependent loading histories were applied: indentation under a step load, indentation under a constant load rate, indentation with a fixed depth of penetration and indentation under constant rate of penetration. The goal of the study is to assess the potential of this approach.
    Trvalý link: http://hdl.handle.net/11104/0190804
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