Assessment of diagonal macrocrack-induced debonding mechanisms in FRP-strengthened RC beams

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00560603" target="_blank" >RIV/68378297:_____/22:00560603 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1061/(ASCE)CC.1943-5614.0001255" target="_blank" >https://doi.org/10.1061/(ASCE)CC.1943-5614.0001255</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1061/(ASCE)CC.1943-5614.0001255" target="_blank" >10.1061/(ASCE)CC.1943-5614.0001255</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of diagonal macrocrack-induced debonding mechanisms in FRP-strengthened RC beams

Popis výsledku v původním jazyce

This study presents a numerical model to characterize the fracture process of a reinforced concrete (RC) beam strengthened with fiber-reinforced polymer (FRP) in detail. A numerical model based on the application of cohesive elements was developed. Mixed-mode constitutive models were proposed to characterize the mechanical behavior of the FRP–concrete interface, the concrete potential fracture surfaces, and the rebar–concrete interface. The normal separation of the interface and its coupling effect on the shear behavior were considered in the constitutive model. In addition, the friction effect was explicitly considered in the constitutive model. Three different typical cases of FRP-strengthened RC from other experimental research were selected to validate the numerical model developed in this paper. Finally, the influence of different constitutive models on the simulation accuracy was analyzed.

Název v anglickém jazyce

Assessment of diagonal macrocrack-induced debonding mechanisms in FRP-strengthened RC beams

Popis výsledku anglicky

This study presents a numerical model to characterize the fracture process of a reinforced concrete (RC) beam strengthened with fiber-reinforced polymer (FRP) in detail. A numerical model based on the application of cohesive elements was developed. Mixed-mode constitutive models were proposed to characterize the mechanical behavior of the FRP–concrete interface, the concrete potential fracture surfaces, and the rebar–concrete interface. The normal separation of the interface and its coupling effect on the shear behavior were considered in the constitutive model. In addition, the friction effect was explicitly considered in the constitutive model. Three different typical cases of FRP-strengthened RC from other experimental research were selected to validate the numerical model developed in this paper. Finally, the influence of different constitutive models on the simulation accuracy was analyzed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Composites for Construction

ISSN

1090-0268

e-ISSN

1943-5614

Svazek periodika

26

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

04022056

Kód UT WoS článku

000840687300015

EID výsledku v databázi Scopus

2-s2.0-85135027717