%0 Journal Article
%T Analysing Micromechanisms of Initiation and Propagation of Short Fatigue Cracks from Rivet Holes in the Aluminums Sheets
%A Dorota Koca¨˝da
%A Volodymyr Hutsaylyuk
%J Fatigue of Aircraft Structures
%D 2009
%I 
%R 10.2478/v10164-010-0009-7
%X Researched initiation and propagation of short surfaces fatigue cracks out of open in double-sided botch laminated sheet of aviation aluminum alloy 2024-T3 at stable amplitude one-sided bend (R=0.1). Research of the initial stage of development of cracks is realized by use of a SEM microscope, and it allowed to set the place of origin of crack and mikromechanisms of fracture of aluminum sheets, and also type of front of crack. Established a large enough scatter of velocity of propagation in the area of development of short cracks, which for a sheet from this alloy, with a thickness of 3 mm, reaches 0.5 mm. On the basis of fractografy researches modified model of analytical description of propagation of short fatigue crack is proposed.
%U http://versita.metapress.com/content/m14p604823121675/?p=c70a25ab1e1e46a18c4d7a6b7fb8410c&pi=8