Pregled bibliografske jedinice broj: 299509
Influence of chosen expression for J-integral and plastic collapse loads on structural integrity assessment of surface cracked thick-walled tubes
Influence of chosen expression for J-integral and plastic collapse loads on structural integrity assessment of surface cracked thick-walled tubes // Proceedings of the 7th Conference on New Trends in Fatigue and Fracture Meeting / Toth, Laslo ; Pluvinage, Guy (ur.).
Miskolc, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 299509 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of chosen expression for J-integral and plastic collapse loads on structural integrity assessment of surface cracked thick-walled tubes
Autori
Skozrit, Ivica ; Tonković, Zdenko ; Kozak, Dražan ; Čanađija, Marko
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 7th Conference on New Trends in Fatigue and Fracture Meeting
/ Toth, Laslo ; Pluvinage, Guy - Miskolc, 2007
Skup
7th Conference on New Trends in Fatigue and Fracture Meeting
Mjesto i datum
Miskolc, Mađarska, 03.05.2007. - 04.05.2007
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
J-integral; plastic limit pressure; plastic collapse pressure; GE/EPRI; reference stress method
Sažetak
The plastic limit and collapse loads as well as the stress intensity factor and J-integral of thick-walled tubes with external axial semi-elliptical surface cracks are investigated by three-dimensional non-linear finite element analyses. Unlike the existing solutions, the newly developed analytical approximation of the plastic limit pressure for thick-walled tubes is applicable to a wide range of crack dimensions. The influence of the choice of flow stress on the plastic collapse estimation of steam generator tubes is considered. Numerical results show that the flow stress, defined by some Failure Assessment Diagram methods, depends not only on the tube material, but also on the crack geometry. Further, for application of the J-integral results to general stress-strain laws, the J estimation equation is re-formulated using the modified reference stress approach.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
069-0691736-1737 - Numerička analiza odziva konstrukcija za određena područja eksploatacije (Brnić, Josip, MZOS ) ( CroRIS)
120-1201910-1812 - Numeričko modeliranje procesa deformiranja bioloških tkiva (Sorić, Jurica, MZOS ) ( CroRIS)
120-1201910-1906 - Modeliranje oštećenja i sigurnost konstrukcija (Tonković, Zdenko, MZOS ) ( CroRIS)
152-1201910-1909 - Analiza i procjena loma konstrukcija iz anizotropnih materijala (Kozak, Dražan, MZOS ) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Fakultet strojarstva i brodogradnje, Zagreb,
Strojarski fakultet, Slavonski Brod
