Počet záznamů: 1

Small fatigue crack growth in aluminium alloy EN-AW 6082/T6

  1. 1.
    0346321 - UFM-A 2011 RIV GB eng J - Článek v odborném periodiku
    Jíša, D. - Liškutín, P. - Kruml, Tomáš - Polák, Jaroslav
    Small fatigue crack growth in aluminium alloy EN-AW 6082/T6.
    International Journal of Fatigue. Roč. 32, č. 12 (2010), s. 1913-1920 ISSN 0142-1123
    Grant CEP: GA ČR GA101/07/1500
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: Aluminium alloys * small cracks * grack growth rate
    Kód oboru RIV: JL - Únava materiálu a lomová mechanika
    Impakt faktor: 1.799, rok: 2010

    The kinetics of small fatigue crack growth at room temperature was measured using light microscopy observation of the cracks in a shallow notch of a cylindrical specimen. Symmetrical tension–compression cycling was adopted. The growth of the crack was measured within the range of half surface crack length from 10 μm up to 2 mm. A linear dependence between the crack growth rate and the crack length, observed in case of steels, was confirmed to be valid in the aluminium 6082/T6 alloy, too. The crack growth coefficient kg increases with plastic strain amplitude; this dependence is well described by a power law. The fatigue life prediction based on the crack growth measurements is compared with the Manson-Coffin law.
    Trvalý link: http://hdl.handle.net/11104/0187385