Coupled effect of load ratio and frequency on mechanical fatigue behaviour of precast aluminium/aramid fibre composite

• Autorzy: Ait Said, A. , Bey, K. , Mzad, H.

Warianty tytułu

PL

Sprzężony wpływ współczynnika obciążenia i częstotliwości na zachowanie zmęczenia mechanicznego prefabrykowanego kompozytu aluminium/włókno aramidowe

• Języki publikacji: EN

Abstrakty

EN

Dynamic tests with different load ratios and frequencies provide designers with the necessary information to evaluate the longevity of different structures as well as minimize weight due to a possibly smaller factor of safety. The influence of loading frequency on the fatigue behaviour of an aluminium composite material (ACP) with an aramid honeycomb core was studied. The mechanical behaviour was assessed by three-point static bending tests, followed by cyclic flexural fatigue tests employing the fabricated sandwich samples, with loading frequencies of 5, 7.5 and 10 Hz. The experimental results were presented on a single graph in order to highlight the different behaviours for the adopted frequencies. Indeed, the tests allowed the authors to determine the different cycle number values necessary to achieve resistance losses of 10 and 25%, respectively. The experiments were carried out for the same loading level of 80% of the maximum force, which is taken as equal to the elastic limit in order to avoid the field of plastic deformations.

Słowa kluczowe

PL

próbka kompozytowa; badania eksperymentalne; częstotliwość obciążenia; liczba cykli; zmęczenie giętne; kryterium końca testu

EN

composite sample; experimental tests; loading frequency; cycle number; flexural fatigue; test-end criterion

• Czasopismo: Composites Theory and Practice
• Rocznik: 2021
• Tom: R. 21, nr 1-2
• Strony: 46--53
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Ait Said, A.

• Laboratory of Industrial Mechanics, Badji Mokhtar University of Annaba, P.O. Box 12, DZ-23000, Algeria

autor

Bey, K.

• Laboratory of Industrial Mechanics, Badji Mokhtar University of Annaba, P.O. Box 12, DZ-23000, Algeria

autor

Mzad, H.

• Laboratory of Industrial Mechanics, Badji Mokhtar University of Annaba, P.O. Box 12, DZ-23000, Algeria,

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).