Počet záznamů: 1

Quantification of the influence of vertex singularities on fatigue crack behavior

  1. 1.
    0332040 - UFM-A 2010 RIV NL eng J - Článek v odborném periodiku
    Hutař, Pavel - Náhlík, Luboš - Knésl, Zdeněk
    Quantification of the influence of vertex singularities on fatigue crack behavior.
    Computational Materials Science. Roč. 45, č. 3 (2009), s. 653-657 ISSN 0927-0256
    Grant CEP: GA ČR(CZ) GA101/05/0320; GA ČR GP106/06/P239
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: Vertex singularity * Generalized stress intensity factor * Stress singularity * Fatigue crack * V-notch
    Kód oboru RIV: JL - Únava materiálu a lomová mechanika
    Impakt faktor: 1.522, rok: 2009

    The effect of vertex singularity on fatigue crack behavior is presented in the article. The methodology based on generalized stress intensity factor and model of V-notch is used for reliable estimation of the fatigue crack growth rate in the area close to the free surface, where the effect of the vertex singularity is dominant. It is shown that decrease of the crack singularity exponent close to the vertex point leads to a decrease in the fatigue crack growth rate and contributes to a typical curved crack front observed experimentally for through crack.
    Trvalý link: http://hdl.handle.net/11104/0177396