Evaluation of the probability density of inhomogeneous fiber orientations by computed tomography and its application to the calculation of the effective properties of a fiber-reinforced composite

Mishurova, Tatiana; Rachmatulin, Natalia; Fontana, Patrick; Oesch, Tyler; Bruno, Giovanni; Radi, Enrico; Sevostianov, Igor

doi:10.1016/j.ijengsci.2017.10.002

Cited by 48 publications

(24 citation statements)

References 65 publications

(36 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[34] to calculate viscoelastic properties of short-fiber-reinforced composites, and it was also used in Ref. [35] to calculate the effective elastic properties of polymer-fiber-reinforced concrete. An ODF is introduced in Ref.…”

Section: Overviewmentioning

confidence: 99%

Maxwell homogenization scheme for piezoelectric composites with arbitrarily-oriented spheroidal inhomogeneities

et al. 2019

View full text Add to dashboard Cite

homogenization scheme for piezoelectric composites with arbitrarily-oriented spheroidal inhomogeneities.Abstract In this work, the effective electro-elastic properties of piezoelectric composites are computed using the Maxwell homogenization method (MHM). The composites are made by several families of spheroidal inhomogeneities embedded in a homogeneous infinite medium (matrix). Each family of spheroidal inhomogeneities is made of the same material, and all the inhomogeneities have identical size and shape and are randomly oriented. The inhomogeneities and matrix materials exhibit piezoelectric transversely isotropic symmetry. It is shown that the shape of the "effective inclusion" substantially affects the effective piezoelectric properties. A new and simple form to calculate the aspect ratio of effective inclusion is presented. The effect on the overall piezoelectric properties due to the orientation of the inhomogeneities and different families of piezoelectric inhomogeneities is discussed. The MHM approach is applied in two examples, material with inhomogeneities having scatter orientation and composites with two different families of spheroidal inhomogeneities.

show abstract

Section: Overviewmentioning

confidence: 99%

Maxwell homogenization scheme for piezoelectric composites with arbitrarily-oriented spheroidal inhomogeneities

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Bordelon and Roesler [5] quantified dispersion of synthetic fibers within concrete using X-ray computed tomography combined with a postprocessing image analysis. Mishurova et al [6] focused on the CT experimental evaluation of the key microstructural parameters of a short fiber-reinforced concrete. Balázs et al [7] studied the distribution and orientation of steel fiber with computed tomography.…”

Section: Introductionmentioning

confidence: 99%

“…e previous research mostly focused on dispersion of synthetic fibers [5,11,12], distribution and orientation of metal fibers [6][7][8], oriented fiber [13,14], defect and damage of fiber-reinforced concrete [9,15,16], fabrication of cementitious materials [17,18], or modeling based on CT image [10,19]. However, these studies do not provide much attention to microscopic texture of polypropylene fiberreinforced concrete.…”

Section: Introductionmentioning

confidence: 99%

Microscopic Texture of Polypropylene Fiber‐Reinforced Concrete with X‐Ray Computed Tomography

Qin

Wu²,

Zheng

et al. 2019

Advances in Civil Engineering

View full text Add to dashboard Cite

Polypropylene fiber-reinforced concrete (PFRC) is a cement-based composite material with short-cut fibers which has been utilized to provide multidimensional reinforcement and enhance toughness of concrete. However, this improvement is closely related to the microstructural morphology of the concrete. A nondestructive technique using X-ray computed tomography (CT) was therefore used to grasp the microscopic texture of PFRC samples. The results showed that the orientation of microcracks, which appear in the interfacial transition zone, are along the surface of the coarse aggregate. The range of distribution of fibers is proportional to fiber volume fraction. The coarse aggregate influence distribution and orientation of polypropylene fibers whose shape are mainly fold line and curve. The dispersion of pores with small volume is uniform, and the distance between the pores with larger volume is short. The proportion of pores with the diameter in the range 0∼199 μm exceeds 70%, of which the sum of volume exceeds a half of total volume with the amount being about 1% of total amount.

show abstract

“…It is one typical destructive measurement and needs a long time for preparing samples (Wang et al 2017;. As a non-destructive, efficient and high-resolution method, X-ray CT imaging technology is an applicable method for investigating the internal microstructure of cement concrete with three-dimensional "3D" view (Henry et al 2014;Wang et al 2018;Liu et al 2013;Balázs et al 2017;Kim et al 2012;Wong, Chau 2005;Komárková 2016;Yang et al 2013;Mishurova et al 2018). As an alternative the magnetic method is being developed by Italian (Ferrara et al 2012) and Spanish (The fib Model Code... 2013) research groups as well as another (Nunes et al 2016(Nunes et al , 2017.…”

Section: Introductionmentioning

confidence: 99%

The Evaluation of the Content of Fibers in Steel Fiber Reinforced Structures and Image Analysis

Ďubek

Makýš

Ďubek

et al. 2018

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

The distribution of fiber orientation is an important factor in determining the mechanical properties of fiber-reinforced concrete. This study proposes a new image analysis technique for improving the evaluation accuracy of fiber orientation distribution in the sectional image of fibers reinforced concrete. The article is devoted to research the systematic evaluation of fiber-cuts through the image processing software. Mathematical representation of the final dispersal of fibers in steel fiber-reinforced concrete is incorporated into a programmed evaluation software. The software detects fibers and classified according to their axes of rotation angle and size of the identified ellipse detection area. Image processing algorithm and detecting fibers has been developed only for these research purposes. Detection area is randomly inserted via steel fiber reinforced concrete structure. The results show the average value of uniformity in the fiber-samples produced in the laboratory.

show abstract

Evaluation of the probability density of inhomogeneous fiber orientations by computed tomography and its application to the calculation of the effective properties of a fiber-reinforced composite

Cited by 48 publications

References 65 publications

Maxwell homogenization scheme for piezoelectric composites with arbitrarily-oriented spheroidal inhomogeneities

Maxwell homogenization scheme for piezoelectric composites with arbitrarily-oriented spheroidal inhomogeneities

Microscopic Texture of Polypropylene Fiber‐Reinforced Concrete with X‐Ray Computed Tomography

The Evaluation of the Content of Fibers in Steel Fiber Reinforced Structures and Image Analysis

Contact Info

Product

Resources

About