Failure Mechanism Investigation of Continuous Fibre Reinforced Cementitious Composites by Pull-out Behaviour Analysis

Zhang, X.B.; Aljewifi, H.; Li, J.

doi:10.1016/j.mspro.2014.06.222

Cited by 19 publications

(20 citation statements)

References 5 publications

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“…In all cases, the resin is bonded to the lower part of the traction device. [191]. The first part, 0 ≤ F ≤ Fd, is linear and corresponds to an elastic solicitation of the whole: fiber, matrix, and interface.…”

Section:   ( ) (mentioning

confidence: 99%

“…Therefore, interpreting the microdroplet test requires specific modeling. As for micromechanical testing, one can distinguish two main approaches [97,191,195]:…”

Section:   ( ) (mentioning

confidence: 99%

“…Zhang et al [191] developed an analytical model to study the pull-out behavior of a continuous fiber-reinforced cementitious composite. This model is based on the analysis of the stress and displacement of the yarn combining continuity conditions.…”

Section: The Zhang Modelmentioning

confidence: 99%

“…Fig.12presents a typical curve obtained during the debonding test. It generally contains three typical zones[191]. The first part, 0 ≤ F ≤ Fd, is linear and corresponds to an elastic solicitation of the whole: fiber, matrix, and interface.…”

mentioning

confidence: 99%

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A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

Teklal

Djebbar

Allaoui

et al. 2018

Composite Structures

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Micromechanical tests are reliable tools to study the failure mechanisms in composites reinforced with continuous fibers. This paper presents an overview of various analytical models developed to study the pullout (push-back) behavior of a fiber embedded in a matrix block to characterize the fiber/matrix interfacial adhesion. Two approaches can be distinguished: one based on a maximum stress criterion (shear lag) and the other based on fracture mechanics. This article gives an overview of the analytical models reported in the literature to measure the shear strength and critical fracture energy at the interface, the parameters influencing these properties, the geometry of the model, embedded length of the fiber, fiber diameter and loading conditions (opening width between the knife-edges for example), including components (fiber, matrix, interface), manufacturing route and the resulting defects.

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Section:   ( ) (mentioning

confidence: 99%

“…Therefore, interpreting the microdroplet test requires specific modeling. As for micromechanical testing, one can distinguish two main approaches [97,191,195]:…”

Section:   ( ) (mentioning

confidence: 99%

Section: The Zhang Modelmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

Teklal

Djebbar

Allaoui

et al. 2018

Composite Structures

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“…Pull-out tests is the most used test to characterize the mechanical properties of the TRC composite. 35,36…”

Section: Methodsmentioning

confidence: 99%

Study of the pull-out test of multifilament yarns embedded in cementitious matrix

Slama

Gallias

Fiorio

2020

Journal of Composite Materials

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In order to understand the impregnation mechanism of a yarn by a cementitious matrix and its influence on the mechanical properties of a yarn/cement composite, pull-out tests have been performed on samples of yarn/cement. Two embedded lengths for the yarn and different rheological and mechanical properties for the matrix were tested. Two pull-out modes were distinguished according to the compressive strength of matrices. For matrices with a compressive strength between 60 and 70 MPa the pull-out mode is characterized by a behaviour close to the tensile behaviour of the yarn, with maximum load values reaching approximately 60% of the tensile maximum load because of filaments damages. For matrices with compressive strength inferior to 60 MPa, the pull-out mode exhibits a residual phase linked to a slippage and an extraction of a variable number of filaments, with lower maximum load values than the first pull-out mode. After pull-out test, for some samples with filaments extraction, an innovative method based on a double impregnation with resin enables to visualize the yarn/matrix interface and identify the level of impregnation of the filaments by using confocal microscopy. It is concluded that this level of impregnation has a direct influence on the mechanical behaviour of the embedded yarn, except for the slippage and extraction phase, but the rheological properties of the matrix has no significant influence on this impregnation.

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Analysing of the Yarn Pull-out Process for the Characterization of Reinforcing Woven Fabrics

et al. 2019

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Failure Mechanism Investigation of Continuous Fibre Reinforced Cementitious Composites by Pull-out Behaviour Analysis

Cited by 19 publications

References 5 publications

A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

Study of the pull-out test of multifilament yarns embedded in cementitious matrix

Analysing of the Yarn Pull-out Process for the Characterization of Reinforcing Woven Fabrics

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