Počet záznamů: 1

Using statistical compatibility to derive advanced probabilistic fatigue models

  1. 1.
    0355184 - UFM-A 2011 RIV NL eng J - Článek v odborném periodiku
    Fernández-Canteli, A. - Castillo, E. - López-Aenlle, M. - Seitl, Stanislav
    Using statistical compatibility to derive advanced probabilistic fatigue models.
    Procedia Engineering. Roč. 2, č. 1 (2010), s. 1131-1140 E-ISSN 1877-7058.
    [Fatigue 2010. Praha, 06.06.2010-11.06.2010]
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: Fatigue models * Statistical compatibility * Functional equations
    Kód oboru RIV: JL - Únava materiálu a lomová mechanika

    Heuristic deterministic models are often proposed to reproduce S−N and ε−N fields as well as crack growth curves aiming at providing basic material characterization to be used in lifetime design. Usually, they arise from the intuition of the researchers and are supported by experimental data, sometimes being complemented by micromechanical considerations based on good knowledge of physical and metallurgical properties of the material. In spite of their utility, this procedure implies serious limitations. In this work, some new methodological suggestions are presented allowing the functional structure of the problem under consideration to be derived, in an attempt of avoiding arbitrary assumptions. The relevant variables involved in the problem are recognized from experimental evidence, a reduced set of dimensionless variables is selected using dimensional analysis, a set of compatibility conditions are established and the constraints to be fulfilled by the model considered.
    Trvalý link: http://hdl.handle.net/11104/0194014