4D imaging of a porous carbonate rock under triaxial loading: quantitative correlation between local porosity and strain

Doré-Ossipyan, C.; Quacquarelli, A.; Bornert, M.; Sulem, J.; Dimanov, A.; Aimedieu, P.; De Greef, V.; King, A.

doi:10.1107/S1600577526006958

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Figure 5
(a) Variance attenuation induced by binning, quantified by the ratio $[\sigma_0^2]$ , where $[\sigma_a^2]$ and $[\sigma_0^2\,/\,\sigma_a^2]$ are the original and filtered variance, respectively. (b) Mean coefficient of variation computed for binned fields filtered with local mean and standard deviation. This coefficient reflects persistence of structures larger than the window size. A minimum is observed when the dominant scale heterogeneities become homogenized.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 33| Part 5| September 2026|

https://doi.org/10.1107/S1600577526006958

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