Search Results - "Bésuelle, Pierre"
-
1
Compacting and dilating shear bands in porous rock: Theoretical and experimental conditions
Published in Journal of Geophysical Research: Solid Earth (10-07-2001)“…The failure of rocks in the brittle regime is generally associated with the appearance of strain localization bands. For very porous rocks, three types of…”
Get full text
Journal Article -
2
Deformation in cemented mudrock (Callovo–Oxfordian Clay) by microcracking, granular flow and phyllosilicate plasticity: insights from triaxial deformation, broad ion beam polishing and scanning electron microscopy
Published in Solid earth (Göttingen) (09-03-2017)“…The macroscopic description of deformation and fluid flow in mudrocks can be improved by a better understanding of microphysical deformation mechanisms. Here…”
Get full text
Journal Article -
3
A one parameter damageable contact law for DEM, with application to frictional-cohesive granular materials
Published in EPJ Web of Conferences (01-01-2021)“…A novel type of damageable cohesive law is presented for paired particle interactions in a DEM granular arrangement. It is designed in the spirit of a mixed…”
Get full text
Journal Article Conference Proceeding -
4
X-Ray Imaging of Immiscible Fluid Fingering Patterns in a Natural High Porosity Rock
Published in Frontiers in physics (04-04-2022)“…This paper presents the development of a laboratory scale apparatus and first experimental results on the characterization of fingering patterns of immiscible…”
Get full text
Journal Article -
5
Diffuse and localized deformation of a porous Vosges sandstone in true triaxial conditions
Published in E3S web of conferences (01-01-2019)“…This work presents an experimental study on the diffuse and localized deformation mechanisms of a high porosity (20%) Vosges sandstone (Eastern France)…”
Get full text
Journal Article Conference Proceeding -
6
A true triaxial experimental study on porous Vosges sandstone: from strain localization precursors to failure using full-field measurements
Published in International journal of rock mechanics and mining sciences (Oxford, England : 1997) (01-05-2022)“…This study systematically investigates the effect of deviatoric loading paths on diffuse and localized deformation developing during the mechanical loading of…”
Get full text
Journal Article -
7
Self-sealing capacity of argillite samples
Published in E3S web of conferences (01-01-2019)“…Many countries are currently facing the issue of finding a proper solution to store radioactive wastes coming from nuclear energy production plants. The…”
Get full text
Journal Article Conference Proceeding -
8
Three-invariant model and bifurcation analysis of deformation bands for a sandstone subjected to true triaxial loading paths
Published in Acta geotechnica (01-07-2023)“…This paper presents a general three-invariant model to evaluate the theoretical prediction of strain localization against laboratory measurements performed…”
Get full text
Journal Article -
9
Large‐scale failure prediction of clay rock from small‐scale damage mechanisms of the rock medium using multiscale modelling
Published in International journal for numerical and analytical methods in geomechanics (01-05-2023)“…Clay rocks are multiphase porous media whose complex structure is characterised by heterogeneity and possible anisotropy on a wide range of scales. The…”
Get full text
Journal Article -
10
Modelling the multiscale behaviour of claystone: deformation, rupture, and hydro-mechanical phenomena around underground galleries
Published in E3S web of conferences (2020)“…In the context of underground exploitation, the behaviour of rocks near galleries and tunnels conditions their stability. Underground drilling generates…”
Get full text
Journal Article -
11
spam: Software for Practical Analysis of Materials
Published in Journal of open source software (13-07-2020)Get full text
Journal Article -
12
Accounting for Small-Scale Heterogeneity and Variability of Clay Rock in Homogenised Numerical Micromechanical Response and Microcracking
Published in Rock mechanics and rock engineering (01-06-2020)“…Clayey rocks have a complex microstructure with multiple characteristic lengths. Deformation under mechanical loading generally induces damage by…”
Get full text
Journal Article -
13
Grain-scale experimental investigation of localised deformation in sand: a discrete particle tracking approach
Published in Acta geotechnica (01-03-2012)“…Recent developments in the application of x-ray micro-tomography in laboratory geomechanics have allowed all the individual grains of sand in a test sample to…”
Get full text
Journal Article -
14
Dynamics of Water Absorption in Callovo-Oxfordian Claystone Revealed With Multimodal X-Ray and Neutron Tomography
Published in Frontiers in earth science (Lausanne) (11-03-2020)“…The Callovo-Oxfordian claystone is a material with notoriously complex hydro-mechanical behaviour. Combined neutron and x-ray tomography modalities are used…”
Get full text
Journal Article -
15
A two-scale time-dependent model of damage: Influence of micro-cracks friction
Published in European journal of mechanics, A, Solids (01-01-2015)“…The aim of this paper is to present a micro-mechanical damage model for quasi-brittle materials that accounts for friction effects on microcracks. We use…”
Get full text
Journal Article -
16
Grain-scale characterization of water retention behaviour of sand using X-ray CT
Published in Acta geotechnica (01-06-2018)“…This paper introduces X-ray tomography as an experimental method that allows grain-scale measurements for both porosity and degree of saturation. A whole…”
Get full text
Journal Article -
17
A Laboratory Experimental Study of the Hydromechanical Behavior of Boom Clay
Published in Rock mechanics and rock engineering (2014)“…This paper reports some results of a large experimental program on Boom Clay conducted in Grenoble in the framework of the European project SELFRAC. The…”
Get full text
Journal Article -
18
A biaxial apparatus for the study of heterogeneous and intermittent strains in granular materials
Published in Granular matter (01-02-2014)“…We present an experimental apparatus specifically designed to investigate the precursors of failure in granular materials. A sample of granular material is…”
Get full text
Journal Article -
19
Observing strain localisation processes in bio-cemented sand using x-ray imaging
Published in Granular matter (01-06-2011)“…In-situ x-ray tomography has been used to follow deformation processes in 3D during two triaxial compression tests, one on a specimen of bio-cemented Ottawa…”
Get full text
Journal Article -
20
The contribution of swelling to self-sealing of claystone studied through x-ray tomography
Published in Physics and chemistry of the earth. Parts A/B/C (01-10-2022)“…Many countries, as among others France, Belgium and Switzerland, are facing the issue of finding a proper solution to store radioactive waste coming from…”
Get full text
Journal Article