A semi-analytical model to predict the pull-out behaviour of inclined hooked-end steel fibres

Soetens, Tim; Gysel, Ann Van; Matthys, Stijn; Taerwe, Luc

doi:10.1016/j.conbuildmat.2013.01.034

Cited by 90 publications

(43 citation statements)

References 29 publications

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“…Additionally, in the literature [64][65][66] some investigations focusing on the estimation of the energy consumption in pulling out the embedded fibres can be found. Chawla [67] assumed that a fibre with a diameter d is pulled out through a distance x against an interfacial frictional shear stress (s i ), then the total force at that instant on the debonded fibre surface opposing the pullout is s i pd (k-x), where k is the fibre embedded length.…”

Section: Modeling Of the Energy Absorption Capacity Of Uhphfrcmentioning

confidence: 99%

Static properties and impact resistance of a green Ultra-High Performance Hybrid Fibre Reinforced Concrete (UHPHFRC): Experiments and modeling

Spiesz

Brouwers

2014

Construction and Building Materials

163

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Section: Modeling Of the Energy Absorption Capacity Of Uhphfrcmentioning

confidence: 99%

Static properties and impact resistance of a green Ultra-High Performance Hybrid Fibre Reinforced Concrete (UHPHFRC): Experiments and modeling

Spiesz

Brouwers

2014

Construction and Building Materials

163

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“…Due to these plastic deformations, the force needed to pullout the fiber becomes larger and the volume of matrix spalled off increases. After the whole embedded length is debonded, the fiber slides progressively and the friction forces are activated as a result of the relative displacement between the fiber and the surrounding matrix (Soetens et al 2013). Fiber may be completely removed from the matrix if enough displacement occurs.…”

Section: Fiber Pullout Mechanismmentioning

confidence: 99%

“…Once the stresses reach the bond strength between materials, debonding takes place ( Fig. 1) (Soetens et al 2013).…”

Section: Fiber Pullout Mechanismmentioning

confidence: 99%

Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

et al. 2016

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Most codes for the design of fiber reinforced concrete (FRC) structures are based on the experience achieved throughout the years with steel fibers. Recent codes include the possibility of applying the same considerations for FRC structures with plastic fiber. However, the consequences of assuming identical design considerations regardless of the type of fiber is scarcely known in terms of the structural behavior of full-scale elements. The main goal of this paper is to assess the influence of the type of fiber on the performance of full-scale concrete slabs, emphasizing on the consequences of using a common design approach. For that, a comparative experimental study was conducted in order to expose differences regarding the crack pattern and load-deflection behavior. Then, finite element simulations were performed using the constitutive equations from the Model Code 2010. The results indicate distinct levels of overestimation of the structural behavior measured experimentally, confirming that specific design considerations are required depending on the type of fiber used. Based on the findings, correction factors are proposed for the design of FRC slabs with each fiber.

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“…The underlying failure mechanism of cementitious composites, reinforced with randomly oriented discontinuous fibres, is also largely governed by fibre pull-out. This may or may not be accompanied by fibre rupture, depending on the fibre geometry and fibre-cement matrix interface properties [1][2][3]. When a crack opens, the fibres crossing the crack plane begin to debond and are subsequently pulled out (i.e.…”

Section: Introductionmentioning

confidence: 99%

A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Mihai

Jefferson

Lyons

2016

Engineering Fracture Mechanics

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A unique constitutive model for fibre reinforced concrete (FRC) is presented, which combines a number of mechanics-based sub models for the simulation of directional cracking, rough crack contact and the crack-bridging action of fibres. The model also contains a plasticity component to simulate compressive behaviour. The plasticity component employs a frictional hardening/softening function which considers the variation of compressive strength and strain at peak stress with fibre content. Numerical results from a range of single-point and finite element simulations of experimental tests show that the model captures the characteristic behaviour of conventional fibre reinforced concrete with good accuracy.

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A semi-analytical model to predict the pull-out behaviour of inclined hooked-end steel fibres

Cited by 90 publications

References 29 publications

Static properties and impact resistance of a green Ultra-High Performance Hybrid Fibre Reinforced Concrete (UHPHFRC): Experiments and modeling

Static properties and impact resistance of a green Ultra-High Performance Hybrid Fibre Reinforced Concrete (UHPHFRC): Experiments and modeling

Influence of the Type of Fiber on the Structural Response and Design of FRC Slabs

A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

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