Analysing Micromechanisms of Initiation and Propagation of Short Fatigue Cracks from Rivet Holes in the Aluminums Sheets

• Autorzy: Kocańda D. , Hutsaylyuk V.

Identyfikatory

DOI

10.2478/v10164-010-0009-7

• Języki publikacji: EN

Abstrakty

EN

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.

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2009
• Tom: Iss. 1
• Strony: 84--101
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab., wykr., wzory

Twórcy

autor

Kocańda D.

• Military University of Technology Warsaw, Poland

autor

Hutsaylyuk V.

• Military University of Technology Warsaw, Poland

Bibliografia

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