2011
DOI: 10.3139/217.2441
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Evaluation of Computed Tomography Data from Fibre Reinforced Polymers to Determine Fibre Length Distribution

Abstract: Sub-lm computed tomography (sub-lm-CT) was used to determine the fibre orientation and fibre length distribution in long glass fibre filled polypropylene. For data evaluation two different concepts based on the application of a sequence of different filters were applied. The first concept is based on segmentation by binarisation using a global threshold, followed by a detailed analysis of regions where fibres are touching. The second concept is based on analysis of the original gray value image. For each voxel… Show more

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Cited by 64 publications
(31 citation statements)
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“…In contrast, morphological approaches such as [7,8], or filter-based methods [10] would also be applicable in our case. Yet, algorithms using partial gray value derivatives [11,12] are more closely related to our method, and we expect these could produce similar results to those presented here. Nevertheless, we will use the local estimation of fiber directions based on the three-dimensional Hessian matrix in this paper, which we have previously described in [13], and which resembles one of the two algorithms used by Salaberger et al [12].…”
Section: Introductionsupporting
confidence: 86%
“…In contrast, morphological approaches such as [7,8], or filter-based methods [10] would also be applicable in our case. Yet, algorithms using partial gray value derivatives [11,12] are more closely related to our method, and we expect these could produce similar results to those presented here. Nevertheless, we will use the local estimation of fiber directions based on the three-dimensional Hessian matrix in this paper, which we have previously described in [13], and which resembles one of the two algorithms used by Salaberger et al [12].…”
Section: Introductionsupporting
confidence: 86%
“…Fritz et al [13] proposed interactive workflows for non destructive testing practitioners to explore and quantify steel fibers in reinforced sprayed concrete. Salaberger et al [27] introduced a pipeline to extract and characterize individual fibers of fiber reinforced composites. They encode the extracted fibers as color-coded line segments in 3D and visually identify fibers with similar orientations.…”
Section: Visual Analysis and Modeling Of Fiber Reinforced Compositesmentioning
confidence: 99%
“…OCT is well known in fracture mechanics, and to date was used for synthetic fiber investigation [31]. A very promising 3D technic, but still expensive and requesting downstream computational investment, is computed tomography [32,33]. This computed tomography technic was also applied for various materials, for instance with [34], or for measuring pore size and other micro texture characteristics [35].…”
Section: Introductionmentioning
confidence: 98%