A microstructural finite element analysis of cement damage on Fontainebleau Sandstone

Nadimi, S., Fonseca, J., Bésuelle, P. & Viggiani, G. (2015). A microstructural finite element analysis of cement damage on Fontainebleau Sandstone. Paper presented at the ICTMS 2015, 2nd International Conference on Tomography of Materials and Structures, 29 Jun - 3 Jul 2015, Québec, Canada.

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Abstract

This paper presents a numerical simulation that uses tomographic data to reproduce the grain-scale mechanisms taking place during deformation of Fontainebleau sandstone. Previous investigation using x-ray tomographic images acquired during triaxial compression has highlighted the role of bonding rupture mechanisms in the failure mode of the material. The model the deformation of the sandstone, images of the internal topology were used to generate an image-based finite element mesh and the grain-scale phenomena such as, the opening and propagation of the cracks associated with the debonding of the cemented grains, were reproduced using a simple constitutive model.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Sandstone; Tomography; Finite Element Modelling
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/12317

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