@ARTICLE{Kocańda_Dorota_Reconstruction_2004,
 author={Kocańda, Dorota and Kocańda, Stanisław and Torzewski, Janusz},
 volume={vol. 51},
 number={No 3},
 journal={Archive of Mechanical Engineering},
 pages={361-376},
 howpublished={online},
 year={2004},
 publisher={Polish Academy of Sciences, Committee on Machine Building},
 abstract={Fatigue crack growth for 2024-T3 Alclad aluminium alloy sheet being subjected to two load programs: a constant stress amplitude cyclic tension (R=O. l) (CA) and a variable amplitude tension with either a single or multiple overloads (OVL) periodically repeated is analysed in the paper. The latter load program corresponds to a simple flight simulation spectrum of wing structure of civil aircraft. The investigation was developed in order to learn about interaction between the applied load and formation of fatigue striations. Experimental results of surface crack growth rate provided by optical observations were compared with the rate determined on the basis of microfracture analysis. Good correspondence found under CA loading between the surface growth rate and the growth rate in the sheet depth means that the direction of specimen's cutting does not change essentially the crack growth behaviour. In the case of second loading (OVL) this factor influences the crack growth behaviour. Microfracture analysis revealed either retardation and acceleration of crack growth rate under OL V loading. This behaviour of growth rate results from a plastic zone formed in the front of crack tip and a crack closure effect.},
 type={Article},
 title={Reconstruction of fatigue crack growth rate for 2024-T3 aluminium alloy sheet on the basis of fractographic analysis},
 URL={http://journals.pan.pl/Content/125004/PDF/7_MECHANICAL_51_2004_3_Kocanda_Reconstruction.pdf},
 keywords={aerospace aluminum alloy, fatigue crack growth rate, programmed loading, fractographic analysis},
}