Pregled bibliografske jedinice broj: 1125789
Virtual crack closure as a method for calculating stress intensity factor of cracks in metallic specimens
Virtual crack closure as a method for calculating stress intensity factor of cracks in metallic specimens // Book of abstracts of the 3rd International Conference on Materials Design and Applications 2020 MDA 2020 / da Silva, Lucas F. M. (ur.).
Porto, 2020. str. 64-64 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1125789 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Virtual crack closure as a method for
calculating stress intensity factor of cracks
in metallic specimens
Autori
Kršćanski, Sanjin ; Brnić, Josip
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Book of abstracts of the 3rd International Conference on Materials Design and Applications 2020 MDA 2020
/ Da Silva, Lucas F. M. - Porto, 2020, 64-64
ISBN
978-989-9017-41-2
Skup
3rd International Conference on Materials Design and Applications 2020 (MDA 2020)
Mjesto i datum
Porto, Portugal, 05.11.2020. - 06.11.2020
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Finite element analysis ; Fracture mechanics ; Virtual crack closure technique (VCCT) ; Stress intensity factor
Sažetak
Stress intensity factor (SIF) is one of the most widely used parameters that characterize the behavior of structures that contain cracks. It can be used in static and fatigue analyses, and it is especially good for describing behavior of cracked structures when only small- scale yielding is present at the vicinity of the crack tip. Various crack growth models are based on this parameter [1, 2] so it is of great importance to determine SIF accurately. Since more complex structures don’t have standard analytical solutions for SIF, finite element analysis (FEA) is commonly used for this purpose. In this work, stress intensity factors calculated by the virtual crack closure technique (VCCT) [3, 4] using FEA results are compared to solutions calculated with the use of available analytical expressions from the literature [5, 6]. SIFs were calculated using a custom-programmed algorithm based on VCCT, which is independent from finite element (FE) code that is used to perform a FE analyses. FE analyses were carried out for several standard metal specimen geometries, for a range of different relative crack sizes. Analysis of influence of FE size and type was also performed. Comments on the applicability of VCCT in static and fatigue FE analyses of cracked metallic specimens are given.
Izvorni jezik
Engleski
Znanstvena područja
Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
NadSve-Sveučilište u Rijeci-UNIRI_TEHNIC-18-42 - Istraživanje, analiza i modeliranje ponašanja konstrukcijskih elemenata opterećenih pri sobnoj i povišenim temperaturama (Brnić, Josip, NadSve ) ( CroRIS)
NadSve-uniri-tehnic-18-107 - Konačnoelementni modeli za analizu nelinearnog odziva tankostjenih grednih konstrukcija (-) (Turkalj, Goran, NadSve - UNIRI PROJEKTI 2018) ( CroRIS)
--IP-2019-04-8615 - Procjena granične nosivosti inženjerskih konstrukcija (LOCAPES) (Lanc, Domagoj) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Sveučilište u Rijeci
