Naslov
Fracture Modeling of Damaged Stiffened Panels under Lateral Pressure Load

Autori
Božić, Željko ; Schmauder, Siegfried

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Procedia Materials Science / Zhiliang Zhang, Bjørn Skallerud, Christian Thaulow, Erling Østby and Jianying He - London : Trondheim : Elsevier, 2014, 1129-1134

Skup
20th European Conference on Fracture

Mjesto i datum
Trondheim, Norveška, 30.06.2014. - 04.07.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Modeling; Elastic-plastic fracture mechanics; J-integral; CTOD; Stiffened panel

Sažetak
Numerical modelling and simulations were carried out in order to analyze fracture mechanisms for stiffened panels, damaged by a single and multiple cracks, and subjected to lateral pressure. For that purpose finite element models for stiffened panel specimens were developed using shell elements. Material property data used in the simulation were obtained from the tensile test and fracture test on a centrally notched tension specimen. By implementing elastic plastic fracture mechanics concepts (EPFM) critical pressures associated with fracture onset in the specimens were assessed based on the critical J-integral and CTOD parameters. Simulated critical pressure loads for stiffened panel specimens were compared with experimental results and a good agreement was observed. The developed procedure can be applied to real thin-walled structures.

Izvorni jezik
Engleski

Znanstvena područja
Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA