Particle image velocimetry (PIV) to evaluate fresh and hardened state properties of self compacting fiber-reinforced cementitious composites (SC-FRCCs)

Şanal, İrem; Zihnioğlu, Nilüfer Özyurt; Hosseini, Ardalan

doi:10.1016/j.conbuildmat.2014.12.026

Cited by 11 publications

(5 citation statements)

References 36 publications

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“…The beam specimens were tested in four‐point bending, according to Figure 1a, using a closed‐loop displacement controlled servo hydraulic testing machine with a capacity of 100 kN 13,25 . Four linear variable displacement transducers (LVDTs) were mounted vertically under the specimen to measure the average deflection and two LVDTs were mounted horizontally on opposite sides of the loading region of the specimen at the bottom to measure the average crack mouth opening displacement.…”

Section: Methodsmentioning

confidence: 99%

“…In order to validate the numerical computations developed in this study for determining the crack effectiveness of the fibers, the results of fiber‐reinforced cementitious (FRCC) specimens of previous studies were adapted from literature 13,25 . The concrete mortar mixes were designed with a water‐binder ratio of w / b = 0.42 and 1.7% added dosage of superplasticizer with regard to cement weight.…”

Section: Methodsmentioning

confidence: 99%

“…In recent studies, the role of fiber orientation, distribution and pull‐out/torsional behavior on the transferred stress for enhancing the postcracking flexural strength was determined 9–11 as well as a size effect 12 . Additionally, image processing and tomography techniques have been applied to monitor the role of fibers as a nondestructive method 13–18 and the crack patterns have been estimated from surfaces of the specimen 19 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

Aryanfar

Şanal

Marian

2020

Structural Concrete

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Fiber‐reinforced concrete exhibits a heterogeneous microstructure formed by aggregates, fibers and a matrix, where the stress from external forces can lead to cracking and fracture. This paper discusses the development of a computational measure for predicting the fiber's efficacy by means of the energy absorbed within the initiated area of the cracks. The analytical development was verified with experimental data from the literature and the results were justified with numerical simulations in the elastic regime. This development couples the localization of the stress in the crack tip with the random distribution of the cracks, which leads to the spatial strain field. Such percolation‐based quantification of the cracks in the early‐stage particularly is useful for effective utilization of fibers during the cracking progress.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

Aryanfar

Şanal

Marian

2020

Structural Concrete

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“…FRC mixes used is adapted from one of the previous studies of the author. [32][33][34] In previous studies of the author, the mix design for a fiber-reinforced cement-based material was optimized for thin section precast elements. Different self-consolidating fiber-reinforced mixes were experimentally examined and mixes, which showed the best performance was chosen in that study.…”

Section: Methodsmentioning

confidence: 99%

“…FRC mixes used is adapted from one of the previous studies of the author . In previous studies of the author, the mix design for a fiber‐reinforced cement‐based material was optimized for thin section precast elements.…”

Section: Experimental Studymentioning

confidence: 99%

Understanding global mechanical response of fiber reinforced cementitious composite beams from local fracture process

Şanal

2018

Struct Control Health Monit

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Summary Cracking of the concrete structures is the major problem in the structural health and durability, and there is a critical need for continuous monitoring and assessing structural integrity. In order to monitor structures, traditional sensors are being used, which have some drawbacks, such only taking recording at specifically determined points. However, it has been shown that unless any existing damage is located at a point of high stress or has severely compromised the integrity of a structure, damages might be undetected. In order to have a more detailed understanding on the behavior of fiber‐reinforced concretes (FRC), their mechanical performance should be evaluated together with local fracture phenomena, such as crack propagation and localization. Because cracking is a major problem in the design and durability of structural elements. In this paper, propagation of cracks in FRC beams under 4‐point bending test is analyzed in detail with an image processing technique, Digital Image Correlation (DIC). DIC technique is applied to further identify fracture parameters such as crack width evolution and crack patterns at different stages of loading, which enables a detailed evaluation of the relationship between fracture parameters and resulting mechanical performance. Therefore, the main aim of this study is to enable the translation of global mechanical response of the FRC beams from the local fracture process, with a detailed characterization of cracks both experimentally and also with DIC analysis, which can be used for structural health monitoring of FRC beams, in terms early stage crack determination and crack monitoring through the lifetime.

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Application of the Method of Digital Image Processing for Evaluation of Crack Formation of Paint Coatings

Loganina,

Zhegera,

Lavrov

2024

Lecture Notes in Civil Engineering

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Particle image velocimetry (PIV) to evaluate fresh and hardened state properties of self compacting fiber-reinforced cementitious composites (SC-FRCCs)

Cited by 11 publications

References 36 publications

Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

Novel percolation‐based measure for fiber efficacy in fiber‐reinforced concrete beams

Understanding global mechanical response of fiber reinforced cementitious composite beams from local fracture process

Application of the Method of Digital Image Processing for Evaluation of Crack Formation of Paint Coatings

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