NC State
A. Sibellas, J.E.Q.M. Litjens, J. Drummond, A.B. Phillion and D.M. Martinez. Visualisation of the 3D microstructure of a monodisperse fibre assembly under uniaxial compression. In Advances in Pulp and Paper Research, Cambridge 2022, Trans. of the XVIIth Fund. Res. Symp. Cambridge, 2022 (D. Coffin and W. Batchelor, eds), pp 91–103. FRC, Manchester, 2022.


In this work we visualize the evolution of the 3D microstructure of a mono-disperse nylon fibre floc undergoing uniaxial compression. In total seven stages of compression were visualized using X-ray microcomputed tomography. We observe that at the early stages of compression, densification occurred through sliding and rotation; at later stages, densification occurred though individual fibre deformation. We quantified these images and estimated the density of interparticle contacts ρc as a function of the compressive strain εc and found that ρc ∝ ε3c

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