Naslov
Fracture of concrete beams at different loading rates

Autori
Reinhardt, Hans-Wolf ; Ožbolt, Joško

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

Izvornik
Fracture Mechanics of Concrete and Concrete Structures - Proceedings of the 6th international conference on fracture mechanics of concrete and concrete structures / Taylor & Francis - Leiden : BALKEMA, 2007, 1-1

ISBN
978-80-01-03762-1

Skup
Fracture Mechanics of Concrete and Concrete Structures

Mjesto i datum
Catania, Italija, 17.06.2007. - 22.06.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Concrete; rate sensitivity; microplane model; finite elementes

Sažetak
To investigate the influence of the loading rate on the cracking behavior of plain concrete beams, a 3D finite element analysis of notched three-point bending beams (normal strength concrete) and cantilever beams (normal and high strength concrete) was carried out. In the used finite element code a model, which is applicable over a many orders of magnitude of the loading rate was adopted. The model is based on the rate process theory of bond ruptures. It was coupled with the microplane model for concrete. Both, static and dynamic analyses were performed. The static analysis was performed using an implicit type of approach whereas in the dynamic analysis the explicit direct integration method was employed. The results show that the loading rate significantly influences the peak resistance and the failure mode of concrete beams.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA