Naslov
Response of concrete members to impact loading

Autori
Reinhardt, Hans-Wolf ; Ožbolt, Joško ; Travaš, Vanja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
7th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-7) : procedings. Vol. 3 / Byung Hwan Oh - Lahti : International Association of Fracture Mechanics for Concrete and Concrete Structures, 2010, 1707-1714

Skup
International Conference on Fracture Mechanics of Concrete and Concrete Structures (7 ; 2010)

Mjesto i datum
Jeju City, Republika Koreja, 23.05.2010. - 28.05.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
contact/impact problem; microplane model; finite elements; fracture

Sažetak
Concrete acts on impact loading in a different way as compared with static loading. First, there is a strain-rate influence on strength, stiffness, and ductility, and, second, there are inertia forces activated. Both influences are clearly demonstrated in experiments. The paper focuses on finite-element simulations. The microplane model is used as a constitutive law for concrete, the strain-rate influence is captured by the activation energy theory. Inertia forces are implicitly accounted for through dynamic finite element analysis. Three examples demonstrate the impact behavior and are discussed. The new formulation of the strain-rate influence on concrete strength according to the fib New Model Code is also presented.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA