Pregled bibliografske jedinice broj: 241900
Numerical Analysis of Surface Cracks in Steam Generator Tubes
Numerical Analysis of Surface Cracks in Steam Generator Tubes // Proceedings of the 16th European Conference of Fracture / E. E. Gdoutos (ur.).
Dordrecht: Springer, 2006. str. 625-626 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 241900 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Numerical Analysis of Surface Cracks in Steam Generator Tubes
Autori
Skozrit, Ivica ; Tonković, Zdenko ; Sorić, Jurica
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 16th European Conference of Fracture
/ E. E. Gdoutos - Dordrecht : Springer, 2006, 625-626
Skup
16th European Conference of Fracture
Mjesto i datum
Aleksandropoli, Grčka, 03.07.2006. - 07.07.2006
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
finite element method; tubes; surface cracks; fracture analysis; plastic limit analysis; stress intensity factor; J-integral; plastic limit pressure
Sažetak
Three-dimensional non-linear finite element analyses have been carried out to determine the plastic limit loads for external axial semi-elliptical surface cracks in VVER steam generator tubes under internal pressure. Plastic limit pressure solutions as functions of the crack depth and length have been developed on the basis of finite element limit load analyses employing elastic-perfectly plastic material behaviour. Using these solutions, a new analytical approximation of the plastic limit pressure has been derived for a wide range of cracks. Finally, comparisons between experimental and finite element data are made. The proposed analytical approximation of limit pressure provides very useful tools for the assessing of pressurized tube integrity.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
