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Assessment of fibre orientation in reinforced concrete using Fourier image transform
Author(s) -
Redon,
Chermant,
Coster
Publication year - 1998
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.1998.00393.x
Subject(s) - materials science , fourier transform , orientation (vector space) , composite material , casting , ribbon , analyser , characterization (materials science) , anisotropy , isotropy , optics , geometry , physics , mathematics , quantum mechanics , nanotechnology
In this study, ribbon‐shaped amorphous cast‐iron fibres were used to reinforce a concrete matrix. X‐ray photographs have been taken to detect fibres in situ . Their orientation has been investigated by automatic image analysis methods. However, this measurement should not be influenced by the digitization on the square frame of the analyser. For that purpose, the Fourier transform was used rather than the rose of direction method. This analysis revealed the transverse isotropic nature of the spatial arrangement of these fibres, whose axis of revolution corresponds to the concrete casting axis. Such a morphological characterization of the fibre‐reinforced concrete reveals its mechanical behaviour.