Safety of construction components in a very high number of load cycles

• Autorzy: Nový František , Belan Juraj , Bokůvka Otakar

Identyfikatory

DOI

10.2478/czoto-2020-0024

• Języki publikacji: EN

Abstrakty

EN

Progressive, high-strength materials have an important position in the transport industry. In this industry, components are subject to high safety and reliability requirements because they often operate under long-term cyclic stress regimes. The paper presents results of fatigue resistance of high-strength materials such DOMEX 700MC, HARDOX 400, HARDOX 450, and INCONEL 718 (UTS from 850 to 1560 MPa) measured at high-frequency cyclic loading (f = 20 kHz, T = 20 ± 5 ° C, push-pull loading, cycle asymmetry parameter of R = -1) in the area from N = 2x10⁶ to N = 2x10⁸ cycles. Fatigue resistance showed a continuous decrease about average value S_a2x10⁸/S_a2x10⁶ = 19.1%.

Słowa kluczowe

EN

high-strength materials; fatigue resistance; push-pull loading; high-frequency; S-N curves

PL

wytrzymałość materiałów; wytrzymałość zmęczeniowa; odporność na zmęczenie; wysoka częstotliwość; krzywa S-N

• Wydawca: De Gruyter
• Czasopismo: System Safety : Human - Technical Facility - Environment
• Rocznik: 2020
• Tom: Vol. 2, nr 1
• Strony: 199--206
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Nový František

• University of Žilina, Slovakia

autor

Belan Juraj

• University of Žilina, Slovakia

autor

Bokůvka Otakar

• University of Žilina, Slovakia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).