Pregled bibliografske jedinice broj: 490828
Utjecaj sekundarnog savijanja na rast pukotina u orebrenim panelima
Utjecaj sekundarnog savijanja na rast pukotina u orebrenim panelima // Engineering review, 30 (2010), 1; 13-21 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 490828 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Utjecaj sekundarnog savijanja na rast pukotina u orebrenim panelima
(Effect of secondary bending on fatigue crack growth in stiffened panels)
Autori
Božić, Željko ; Vujica, Danijel ; Braut, Sanjin
Izvornik
Engineering review (1330-9587) 30
(2010), 1;
13-21
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
zZamor orebrenih panela; faktor intenzivnosti naprezanja; sekundarno savijanje
(fatigue of stiffened panels; stress intensity factor; secondary bending)
Sažetak
Fatigue crack propagation tests with constant amplitude loading were carried out for a plate and a stiffened panel specimen with a central through crack. In damaged stiffened panels under tension out-of-plane displacements occur with local bending as a result, due to the geometric eccentricities introduced by the cracked cross-section. A secondary bending factor sbf is defined as the ratio of local bending and membrane stresses in the vicinity of a crack tip. Crack propagation simulation procedure based on numerical integration of the Paris equation, taking account of local bending, was introduced. The Mode I stress intensity factors (SIF), KI, associated with the plate free surface on which positive bending stresses occurs is determined from membrane SIF values calculated by ANSYS FE program and the sbf ratio. The introduced crack propagation simulations procedure which takes account of secondary bending proved to be conservative and gives slightly shorter crack propagation life, compared to experimental results.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika
POVEZANOST RADA
Projekti:
248-0691736-1821 - Optimizacija parametara konstrukcije strojeva za produženje životnog vijeka
069-0691736-1733 - Redukcija vibracija i buke strojeva mehatroničkim pristupom (Žigulić, Roberto, MZOS ) ( CroRIS)
120-0362321-2198 - Numerička i eksperimentalna istraživanja nelinearnih mehaničkih sustava (Wolf, Hinko, MZOS ) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Fakultet strojarstva i brodogradnje, Zagreb,
Veleučilište u Karlovcu
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Emerging Sources Citation Index (ESCI)
Uključenost u ostale bibliografske baze podataka::
- Cambridge Scientific Abstracts (CSA)