Pregled bibliografske jedinice broj: 846112
MEZO MODEL BETONA ARMIRANOG VLAKNIMA: EFEKTIVNA POSMIC NA VEZA IZMEĐU VLAKNA I BETONA
MEZO MODEL BETONA ARMIRANOG VLAKNIMA: EFEKTIVNA POSMIC NA VEZA IZMEĐU VLAKNA I BETONA // Zbornik radova (Građevinski fakultet Sveučilišta u Rijeci), XVII (2014), 197-212 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 846112 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
MEZO MODEL BETONA ARMIRANOG VLAKNIMA: EFEKTIVNA POSMIC NA VEZA IZMEĐU VLAKNA I BETONA
(MESO SCALE MODEL FOR FIBER-REINFORCEDCONCRETE: EFFECTIVE BOND-SLIP RELATIONSHIP OF FIBERS)
Autori
Smolčić, Željko : Ožbolt, Joško
Izvornik
Zbornik radova (Građevinski fakultet Sveučilišta u Rijeci) (0350-8552) XVII
(2014);
197-212
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
beton; čelična vlakna; analiza 3D konačnim elementima; mezo nivo; mikroravninski model; posmično naprezanja-prokliznuće
(Concrete; steel fibers; 3D finite element analysis; meso-scale; microplane model; bond-slip)
Sažetak
The paper carries out an experimental and numerical analysis of hook-end steel fiber reinforced concrete. The experimental tests are performed on notched beams loaded in 3-point bending using fiber volume fractions up to 1.5 %. The numerical analysis of fiber reinforced concrete beams is performed at meso scale. The concrete is discretized with 3D solid finite elements and a microplane model is used as a constitutive law. The fibers are modelled by randomly generated 1D truss finite elements and the interface between concrete and fibers is simulated by employing discrete bond-slip relationship. The analysis realistically replicates experimental results. In all investigated cases failure is due to the pull-out of fibers. It is shown that with increase of volume content of fibers the effective bond strength and slip capacity of fibers decreases.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
