The influence of overloads on fatigue crack growth in aircraft materials

• Autorzy: Kłysz S.

Warianty tytułu

PL

Wpływ przeciążeń na rozwój pęknięć zmęczeniowych w materiałach lotniczych

• Języki publikacji: EN

Abstrakty

EN

Some peculiarities of fatigue crack growth, ones referred to curves of a crack length vs. the number of cycles or the rate of propagation vs. the range of stress intensity factor, i.e. curves typical of tests with overloads applied in cycles for the aluminium alloy and the constructional steel, has been given consideration in the paper. Difficulties with the model-based description (based on the Wheeler retardation model) of fatigue crack growth have been shown as due to the peculiarities discussed.

PL

W pracy poddano analizie wybrane osobliwości rozwoju pęknięć zmęczeniowych, w szczególności związane z krzywymi długość pęknięcia w funkcji liczby cykli lub prędkość propagacji w funkcji zakresu współczynnika intensywności naprężeń, tj. krzywych typowych testów z cyklicznie zadawanymi przeciążeniami - dla stopu aluminium i stali konstrukcyjnej. Trudności z modelowym opisem (w oparciu o model opóźnień Wheelera) rozwoju pęknięć zmęczeniowych zostały przedstawione jako wynik omawianych osobliwości.

Słowa kluczowe

EN

fatigue crack; overloads

• Wydawca: Wydawnictwa Naukowe Instytutu Lotnictwa
• Czasopismo: Prace Instytutu Lotnictwa
• Rocznik: 2003
• Tom: z. 1-2 (172-173)
• Strony: 63--69
• Opis fizyczny: Bibliogr. 28 poz., tab., wykr.

Twórcy

autor

Kłysz S.

• Air Force Institute of Technology, Division for Aeronautical Systems Reliability & Safety

Bibliografia

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