Pregled bibliografske jedinice broj: 461253
Fatigue crack propagation in stiffened panels under tension loading
Fatigue crack propagation in stiffened panels under tension loading // Proceedings of the International Workshop Advanced Ship Design for Pollution Prevention / Guedes Soares, C ; Parunov, Joško (ur.).
London : Delhi: Taylor & Francis, 2010. str. 1-8 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 461253 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Fatigue crack propagation in stiffened panels under tension loading
Autori
Božić, Željko ; Parunov, Joško ; Fadljević, Marko
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the International Workshop Advanced Ship Design for Pollution Prevention
/ Guedes Soares, C ; Parunov, Joško - London : Delhi : Taylor & Francis, 2010, 1-8
ISBN
978-0-415-58477-7
Skup
International Workshop Advanced Ship Design for Pollution Prevention
Mjesto i datum
Split, Hrvatska, 23.11.2009. - 24.11.2009
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
oil tanker; crack propagation; finite element method
Sažetak
Fatigue crack growth in stiffened panels under cyclic tension loading was studied in this paper. Results of fatigue crack propagation tests with cyclic stress of constant amplitude and frequency on centrally notched plate and stiffened panel specimens were reported. A numerical crack growth simulation procedure based on integration of Paris equation was introduced and fatigue lifetime was simulated for the specimens. Implementing the introduced procedure crack propagation in a main deck longitudinal of a double-hull oil tanker was analyzed. The Mode I, II and III Stress Intensity Factors (SIFs) were determined in a FEA using singular elements. Compared to Mode I SIF values, the Mode II and III values were small and did not influence structural components fatigue lifetime significantly. Secondary bending which occurs due to the cut stiffeners or flanges has been taken into account in the stress intensity factor determination. The study showed a significant influence of secondary bending on crack growth rate in stiffened panels. Also, it was shown that an increase in nominal loading stress range of 10% or decrease of 5%, can shorten or extend fatigue lifetime of the structural component by 30% or 20%, respectively.
Izvorni jezik
Engleski
Znanstvena područja
Brodogradnja, Strojarstvo
POVEZANOST RADA
Projekti:
120-0362321-2198 - Numerička i eksperimentalna istraživanja nelinearnih mehaničkih sustava (Wolf, Hinko, MZOS ) ( CroRIS)
120-1201703-1702 - Određivanje sigurnosti brodova i pučinskih objekata (Žiha, Kalman, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb