Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites. / Pereira, Eduardo B.; Fischer, Gregor; Barros, Joaquim A.O.

In: Cement and Concrete Composites, Vol. 34, No. 10, 2012, p. 1114-1123.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Pereira, Eduardo B.; Fischer, Gregor; Barros, Joaquim A.O. / Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites.

In: Cement and Concrete Composites, Vol. 34, No. 10, 2012, p. 1114-1123.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{ffa5cb1d327e4054afcd56ee98eed82c,
title = "Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites",
keywords = "Hybrid, Fiber reinforcement, Tensile properties, Cementitious composite, Material design, Cracking process",
publisher = "Pergamon",
author = "Pereira, {Eduardo B.} and Gregor Fischer and Barros, {Joaquim A.O.}",
year = "2012",
doi = "10.1016/j.cemconcomp.2012.08.004",
volume = "34",
number = "10",
pages = "1114--1123",
journal = "Cement and Concrete Composites",
issn = "0958-9465",

}

RIS

TY - JOUR

T1 - Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites

A1 - Pereira,Eduardo B.

A1 - Fischer,Gregor

A1 - Barros,Joaquim A.O.

AU - Pereira,Eduardo B.

AU - Fischer,Gregor

AU - Barros,Joaquim A.O.

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - The simultaneous use of different types of fibers as reinforcement in cementitious matrix composites is typically motivated by the underlying principle of a multi-scale nature of the cracking processes in fiber reinforced cementitious composites. It has been hypothesized that while undergoing tensile deformations in the composite, the fibers with different geometrical and mechanical properties restrain the propagation and further development of cracking at different scales from the micro- to the macro-scale. The optimized design of the fiber reinforcing systems requires the objective assessment of the contribution of each type of fiber to the overall tensile response. Possible synergistic effects resulting from particular combinations of fibers need to be clearly identified. In the present study, the evaluation of the response of different fiber reinforced cementitious composite materials is carried out by assessing directly their tensile stress-crack opening behavior. The efficiency of hybrid fiber reinforcements and the multi-scale nature of cracking processes are discussed based on the experimental results obtained, as well as the micro-mechanisms underlying the contribution of different fibers to bridge cracks resulting from tensile loading.

AB - The simultaneous use of different types of fibers as reinforcement in cementitious matrix composites is typically motivated by the underlying principle of a multi-scale nature of the cracking processes in fiber reinforced cementitious composites. It has been hypothesized that while undergoing tensile deformations in the composite, the fibers with different geometrical and mechanical properties restrain the propagation and further development of cracking at different scales from the micro- to the macro-scale. The optimized design of the fiber reinforcing systems requires the objective assessment of the contribution of each type of fiber to the overall tensile response. Possible synergistic effects resulting from particular combinations of fibers need to be clearly identified. In the present study, the evaluation of the response of different fiber reinforced cementitious composite materials is carried out by assessing directly their tensile stress-crack opening behavior. The efficiency of hybrid fiber reinforcements and the multi-scale nature of cracking processes are discussed based on the experimental results obtained, as well as the micro-mechanisms underlying the contribution of different fibers to bridge cracks resulting from tensile loading.

KW - Hybrid

KW - Fiber reinforcement

KW - Tensile properties

KW - Cementitious composite

KW - Material design

KW - Cracking process

U2 - 10.1016/j.cemconcomp.2012.08.004

DO - 10.1016/j.cemconcomp.2012.08.004

JO - Cement and Concrete Composites

JF - Cement and Concrete Composites

SN - 0958-9465

IS - 10

VL - 34

SP - 1114

EP - 1123

ER -