Publications de Guillaume Anciaux

Disk harmonics for analysing curved and flat self-affine rough surfaces and the topological reconstruction of open surfaces

When two bodies get into contact, only a small portion of the apparent area is actually involved in producing contact and friction forces because of the surface roughnesses. It is, therefore, crucial to accurately describe the morphology of rough surfaces, ...

2025

Two-scale concurrent simulations for crack propagation using FEM–DEM bridging coupling

Jean-François Molinari, Guillaume Anciaux, Manon Eugénie Voisin--Leprince, Antonio Joaquin Garcia Suarez

The Discrete element method (DEM) is a robust numerical tool for simulating crack propagation and wear in granular materials. However, the computational cost associated with DEM hinders its applicability to large domains. To address this limitation, we emp ...

2024

Accompanying data for the paper "Two-scale concurrent simulations for crack propagation using FEM-DEM bridging coupling" : Mode-II

Jean-François Molinari, Guillaume Anciaux, Manon Eugénie Voisin--Leprince, Antonio Joaquin Garcia Suarez

Contributions Manon Voisin--Leprince: Contributed to writing scripts, launching simulations, and analyzing results Joaquin Garcia-Suarez: Contributed to helping analyze results Guillaume Anciaux: Contributed to supervising the project Jean-François M ...

Zenodo2024

Accompanying data for the paper "Two-scale concurrent simulations for crack propagation using FEM-DEM bridging coupling" : Mode-I

Jean-François Molinari, Guillaume Anciaux, Manon Eugénie Voisin--Leprince, Antonio Joaquin Garcia Suarez

Contributions Manon Voisin--Leprince: Contributed to writing scripts, launching simulations, and analyzing results Joaquin Garcia-Suarez: Contributed to helping analyze results Guillaume Anciaux: Contributed to supervising the project Jean-François M ...

Zenodo2024

Finite element method–discrete element method bridging coupling for the modeling of gouge

Jean-François Molinari, Guillaume Anciaux, Manon Eugénie Voisin--Leprince, Antonio Joaquin Garcia Suarez

We discuss the multiscale modeling of a granular material trapped between continuum elastic domains. The amorphous granular region, usually termed “gouge,” is under high confinement pressure, to represent the loading of faults at depth. We model the granul ...

Wiley2023

A fully-coupled highly-parallelized geomechanical simulator for assessing induced seismicity

Jean-François Molinari, Guillaume Anciaux, Nicolas Richart, Brice Tanguy Alphonse Lecampion, Emil Gallyamov

Induced seismicity caused by anthropogenic modification of the subsurface effective stress state has been observed in a number of industrial applications -- from hydrocarbon extraction (e.g., Groningen [1]), drilling waste-water disposal (e.g., [2]) to the ...

2023

The INTERNODES method for applications in contact mechanics and dedicated preconditioning techniques

Simone Deparis, Guillaume Anciaux, Yannis Dirk Voet

The mortar finite element method is a well-established method for the numerical solution of partial differential equations on domains displaying non-conforming interfaces. The method is known for its application in computational contact mechanics. However, ...

PERGAMON-ELSEVIER SCIENCE LTD2022

The role of the roughness spectral breadth in elastic contact of rough surfaces (vol 107, pg 469, 2017)

Jean-François Molinari, Guillaume Anciaux, Vladislav Yastrebov

PERGAMON-ELSEVIER SCIENCE LTD2022

Numerical Generation and Contact Analysis of Rough Surfaces in Concrete

Guillaume Anciaux, Mohit Pundir

In concrete structures, opened cracks contribute significantly to the transfer of shear and normal stresses through the contact forces occurring between fractured surfaces. Such contact forces are due to protruding asperities, engaged by interlocking and f ...

JAPAN CONCRETE INST2021

Coupling between cohesive element method and node‐to‐segment contact algorithm: Implementation and application

Guillaume Anciaux, Mohit Pundir

In materials, the evolution of crack surfaces is intimately linked with the self-contact occurring between them. The developed contact forces not only mitigate the effect of stress concentration at crack tip but also contribute sig- nificantly to the trans ...

Wiley2021

Crack Nucleation in the Adhesive Wear of an Elastic-Plastic Half-Space

Jean-François Molinari, Guillaume Anciaux, Lucas Henri Galilée Frérot

The detachment of material in an adhesive wear process is driven by a fracture mechanism which is controlled by a critical length-scale. Previous efforts in multi-asperity wear modeling have applied this microscopic process to rough elastic contact. Howeve ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Tamaas: a library for elastic-plastic contact of periodic rough surfaces

Jean-François Molinari, Guillaume Anciaux, Lucas Henri Galilée Frérot, Son-Jonathan Pham-Ba, Valentine Ginette Madeleine Rey

Tamaas: a library for elastic-plastic contact of periodic rough surfaces", published in the Journal of Open Source Softwares describes the free and open-source library Tamaas. More than five years in the making, Tamaas is a high performance C++/Python libr ...

2020

Review of fundamental assumptions of the Two-Phase model for aggregate interlocking in cracked concrete using numerical methods and experimental evidence

Aurelio Muttoni, Miguel Fernández Ruiz, Guillaume Anciaux, Max Tirassa, Mohit Pundir

Aggregate interlocking allows transferring shear and normal stresses through open cracks, and is considered to significantly contribute to the force transfer in cracked concrete. The complex phenomenon depends on the roughness of cracked surfaces, where ma ...

Pergamon-Elsevier Science Ltd2019

A Fourier-accelerated volume integral method for elastoplastic contact

Jean-François Molinari, Guillaume Anciaux, Lucas Henri Galilée Frérot

The contact of solids with rough surfaces plays a fundamental role in physical phenomena such as friction, wear, sealing, and thermal transfer. However, its simulation is a challenging problem due to surface asperities covering a wide range of length-scale ...

2019

Contact élastoplastique : équations intégrales accélérées par une approche Fourier

Jean-François Molinari, Guillaume Anciaux, Lucas Henri Galilée Frérot

Une approche par équations intégrales volumiques du problème de contact élastoplastique périodique est présentée. Elle repose sur la formulation des fonctions de Green nécessaires au calcul des opérateurs intégraux directement dans l’espace de Fourier. Cel ...

2019

Guillaume Anciaux

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Disk harmonics for analysing curved and flat self-affine rough surfaces and the topological reconstruction of open surfaces

Two-scale concurrent simulations for crack propagation using FEM–DEM bridging coupling

Accompanying data for the paper "Two-scale concurrent simulations for crack propagation using FEM-DEM bridging coupling" : Mode-II

Accompanying data for the paper "Two-scale concurrent simulations for crack propagation using FEM-DEM bridging coupling" : Mode-I

Finite element method–discrete element method bridging coupling for the modeling of gouge

A fully-coupled highly-parallelized geomechanical simulator for assessing induced seismicity

The INTERNODES method for applications in contact mechanics and dedicated preconditioning techniques

The role of the roughness spectral breadth in elastic contact of rough surfaces (vol 107, pg 469, 2017)

Numerical Generation and Contact Analysis of Rough Surfaces in Concrete

Coupling between cohesive element method and node‐to‐segment contact algorithm: Implementation and application

Crack Nucleation in the Adhesive Wear of an Elastic-Plastic Half-Space

Tamaas: a library for elastic-plastic contact of periodic rough surfaces

Review of fundamental assumptions of the Two-Phase model for aggregate interlocking in cracked concrete using numerical methods and experimental evidence

A Fourier-accelerated volume integral method for elastoplastic contact

Contact élastoplastique : équations intégrales accélérées par une approche Fourier

Lattice Green function methods for atomistic/continuum coupling: Theory and data-sparse implementation

Modeling and simulation in tribology across scales: An overview

The coupled atomistic/discrete-dislocation method in 3d. Part III: Dynamics of hybrid dislocations

Coupled atomistic/discrete dislocation method in 3D Part II: Validation of the method

The Coupled Atomistic/Discrete-Dislocation method in 3d part I: Concept and algorithms