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Pregled bibliografske jedinice broj: 846112

MEZO MODEL BETONA ARMIRANOG VLAKNIMA: EFEKTIVNA POSMIC NA VEZA IZMEĐU VLAKNA I BETONA


Smolčić, Željko : Ožbolt, Joško
MEZO MODEL BETONA ARMIRANOG VLAKNIMA: EFEKTIVNA POSMIC NA VEZA IZMEĐU VLAKNA I BETONA // Zbornik radova Građevinskog fakulteta Sveučilišta u Rijeci, XVII (2014), 197-212 (podatak o recenziji nije dostupan, članak, znanstveni)


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 Građevinskog fakulteta 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



POVEZANOST RADA


Ustanove
Građevinski fakultet, Rijeka

Autor s matičnim brojem:
Željko Smolčić, (220535)