MECHANICAL BEHAVIOUR AND RUPTURE IN CLAYEY ROCKS STUDIED BY X-RAY MICRO-TOMOGRAPHY AND 3D-DIGITAL IMAGE CORRELATION

The mechanical behaviour and the rupture of clayey rocks have been experimentally studied by performing in situ triaxial tests on a synchrotron beamline i.e. performing X-ray micro tomography scans under mechanical loading. The 3D images obtained at different steps of the test were then analysed by 3D-Digital Image Correlation method in order to measure incremental strain fields. The results allow to clearly detect the onset of shear strain localization and to characterize its development in a 3D complex pattern.

Mots clés

Clayey rocks X-ray micro-tomography 3-D digital image correlation In-situ triaxial test Localization

Domaines

Mécanique des matériaux [physics.class-ph] Mécanique des matériaux [physics.class-ph]

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whydoc08_12_lenoir.pdf (981.82 Ko)

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https://hal.science/hal-00510542

Soumis le : jeudi 19 août 2010-14:56:12

Dernière modification le : mardi 27 août 2024-12:41:49

Archivage à long terme le : samedi 20 novembre 2010-02:41:57

Dates et versions

hal-00510542 , version 1 (19-08-2010)

Identifiants

HAL Id : hal-00510542 , version 1

Citer

Nicolas Lenoir, Gioacchino Cinno Viggiani, Jacques Desrues, Pierre Bésuelle, Michel Bornert. MECHANICAL BEHAVIOUR AND RUPTURE IN CLAYEY ROCKS STUDIED BY X-RAY MICRO-TOMOGRAPHY AND 3D-DIGITAL IMAGE CORRELATION. W(H)YDOC 08 : 3rd international workshop of young doctors in geomechanics, Nov 2008, France. pp. 35-38. ⟨hal-00510542⟩

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