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Pregled bibliografske jedinice broj: 1006596

Bond-slip parameter estimation in fiber reinforced concrete at failure using inverse stochastic model


Kožar, Ivica; Torić Malić, Neira; Simonetti, Danijel; Smolčić, Željko
Bond-slip parameter estimation in fiber reinforced concrete at failure using inverse stochastic model // Engineering failure analysis, 104 (2019), 84-95 doi:10.1016/j.engfailanal.2019.05.019 (međunarodna recenzija, članak, znanstveni)


Naslov
Bond-slip parameter estimation in fiber reinforced concrete at failure using inverse stochastic model

Autori
Kožar, Ivica ; Torić Malić, Neira ; Simonetti, Danijel ; Smolčić, Željko

Izvornik
Engineering failure analysis (1350-6307) 104 (2019); 84-95

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Debonding ; Failure mechanism/analysis ; Fracture ; Probability ; Tensile properties ; Inverse model ; Parameter estimation

Sažetak
Fiber reinforced concrete is an emerging material in civil engineering with many desirable properties. However, material model for this material has not been yet firmly established. Failure model has a particular property: fibers do not break in failure, they got pulled-out of the concrete matrix. Accordingly, the bond between the fiber and the matrix (bond-slip law) strongly influ- ences material behavior in failure. In attempts to experimentally determine the bond-slip law rather large spread in results becomes evident. This variance in results can be simulated by replacing the deterministic model with the stochastic description based on the idea from the fiber bundle model. Stochastic parameters are difficult to guess so mathematical procedure based on inverse analysis has been devised. The inverse model relies on the non-linear least squares ap- proach combined with order statistics. This novel procedure successfully extracts stochastic bond-slip parameters from experimental results.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-9068 - Višeskalni model betona s identifikacijom parametara (Ivica Kožar, )
uniri-tehnic-18-108

Ustanove
Građevinski fakultet, Rijeka

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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