Guillaume Anciaux

M. Hodapp; G. Anciaux; W. CurtinComputer Methods in Applied Mechanics and Engineering. 2019. DOI : 10.1016/j.cma.2019.02.006.Detailed record View at publisher

[5] A Fourier-accelerated volume integral method for elastoplastic contact

L. Frérot; M. Bonnet; J.-F. Molinari; G. AnciauxComputer Methods in Applied Mechanics and Engineering. 2019. DOI : 10.1016/j.cma.2019.04.006.Detailed record Full text – View at publisher2018

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

M. Hodapp; G. Anciaux; J.-F. Molinari; W. CurtinJournal of the Mechanics and Physics of Solids. 2018-10-01. DOI : 10.1016/j.jmps.2018.05.003.Detailed record Full text – View at publisher

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

J. Cho; J. Molinari; W. Curtin; G. AnciauxJOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS. 2018. DOI : 10.1016/j.jmps.2018.05.005.Detailed record Full text – View at publisher

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

G. Anciaux; T. Junge; M. Hodapp; T. Cho; J. Molinari et al.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS. 2018. DOI : 10.1016/j.jmps.2018.05.004.Detailed record Full text – View at publisher

[9] Modeling and simulation in tribology across scales: An overview

A. Vakis; V. Yastrebov; J. Scheibert; L. Nicola; D. Dini et al.TRIBOLOGY INTERNATIONAL. 2018. DOI : 10.1016/j.triboint.2018.02.005.Detailed record View at publisher2017

[10] On the accurate computation of the true contact-area in mechanical contact of random rough surfaces

V. A. Yastrebov; G. Anciaux; J.-F. MolinariTribology International. 2017. DOI : 10.1016/j.triboint.2017.04.023.Detailed record View at publisher

[11] Normal adhesive contact on rough surfaces: efficient algorithm for FFT-based BEM resolution

V. Rey; G. Anciaux; J.-F. MolinariComputational Mechanics. 2017. DOI : 10.1007/s00466-017-1392-5.Detailed record View at publisher

[12] The role of the roughness spectral breadth in elastic contact of rough surfaces

V. A. Yastrebov; G. Anciaux; J.-F. MolinariJournal of the Mechanics and Physics of Solids. 2017. DOI : 10.1016/j.jmps.2017.07.016.Detailed record View at publisher

[13] Mobility law of dislocations with several character angles and temperatures in FCC Aluminum

J. Cho; J.-F. Molinari; G. AnciauxInternational Journal of Plasticity. 2017. DOI : 10.1016/j.ijplas.2016.12.004.Detailed record View at publisher2015

[14] Toward a 3D coupled atomistic and discrete dislocation dynamics simulation: dislocation core structures and Peierls stresses with several character angles in FCC aluminum

J. Cho; T. Junge; J.-F. Molinari; G. AnciauxAdvanced Modeling and Simulation in Engineering Sciences. 2015. DOI : 10.1186/s40323-015-0028-6.Detailed record View at publisher

[15] Dynamic stability of displacement-based atomistic/continuum coupling methods

T. Junge; G. Anciaux; J.-F. MolinariJournal Of The Mechanics And Physics Of Solids. 2015. DOI : 10.1016/j.jmps.2015.04.004.Detailed record View at publisher

[16] From infinitesimal to full contact between rough surfaces: Evolution of the contact area

V. A. Yastrebov; G. Anciaux; J.-F. MolinariInternational Journal Of Solids And Structures. 2015. DOI : 10.1016/j.ijsolstr.2014.09.019.Detailed record View at publisher2014

[17] Impact of internal crystalline boundaries on lattice thermal conductivity: Importance of boundary structure and spacing

R. Aghababaei; G. Anciaux; J.-F. MolinariApplied Physics Letters. 2014. DOI : 10.1063/1.4901887.Detailed record Full text – View at publisher

[18] The Contact of Elastic Regular Wavy Surfaces Revisited

V. A. Yastrebov; G. Anciaux; J.-F. MolinariTribology Letters. 2014. DOI : 10.1007/s11249-014-0395-z.Detailed record View at publisher

[19] A concurrent atomistic and continuum coupling method with applications to thermo-mechanical problems

S. B. Ramisetti; G. Anciaux; J. F. MolinariInternational Journal For Numerical Methods In Engineering. 2014. DOI : 10.1002/nme.4606.Detailed record View at publisher

[20] The existence of a critical length scale in regularised friction

D. S. Kammer; V. Yastrebov; G. Anciaux; J.-F. MolinariJournal of the Mechanics and Physics of Solids. 2014. DOI : 10.1016/j.jmps.2013.10.007.Detailed record View at publisher2013

[21] A molecular dynamics and finite element study of the nanoscale thermal contact conductance

G. Anciaux; J.-F. MolinariInternational Journal of Heat and Mass Transfer. 2013. DOI : 10.1016/j.ijheatmasstransfer.2012.12.003.Detailed record Full text – View at publisher

[22] Relations between roughness, temperature and dry sliding friction at the atomic scale

P. Spijker; G. Anciaux; J.-F. MolinariTribology International. 2013. DOI : 10.1016/j.triboint.2012.02.009.Detailed record View at publisher

[23] Insights into the thermo-mechanics of orthogonal nanometric machining

P. Romero; G. Anciaux; A. Molinari; J.-F. MolinariComputational Materials Science. 2013. DOI : 10.1016/j.commatsci.2013.01.036.Detailed record View at publisher

[24] Spatial filters for bridging molecular dynamics with finite elements at finite temperatures

S. B. Ramisetti; G. Anciaux; J.-F. MolinariComputer Methods in Applied Mechanics and Engineering. 2013. DOI : 10.1016/j.cma.2012.09.008.Detailed record View at publisher2012

[25] A finite temperature bridging domain method for MD-FE coupling and application to a contact problem

G. Anciaux; S. B. Ramisetti; J.-F. MolinariComputer Methods in Applied Mechanics and Engineering. 2012. DOI : 10.1016/j.cma.2011.01.012.Detailed record Full text – View at publisher

[26] Contact between representative rough surfaces

V. A. Yastrebov; G. Anciaux; J.-F. MolinariPhysical Review E. 2012. DOI : 10.1103/PhysRevE.86.035601.Detailed record View at publisher

[27] Friction at the tool-chip interface during orthogonal nanometric machining

P. A. Romero; G. Anciaux; A. Molinari; J. F. MolinariModelling And Simulation In Materials Science And Engineering. 2012. DOI : 10.1088/0965-0393/20/5/055007.Detailed record View at publisher

[28] The effect of loading on surface roughness at the atomistic level

P. Spijker; G. Anciaux; J.-F. MolinariComputational Mechanics. 2012. DOI : 10.1007/s00466-011-0574-9.Detailed record Full text – View at publisher2011

[29] Dry sliding contact between rough surfaces at the atomistic scale

P. Spijker; G. Anciaux; J.-F. MolinariTribology Letters. 2011. DOI : 10.1007/s11249-011-9846-y.Detailed record Full text – View at publisher

[30] The autocorrelation function for island areas on self-affine surfaces

S. B. Ramisetti; C. Campañá; G. Anciaux; J.-F. Molinari; M. H. Müser et al.Journal of Physics: Condensed Matter. 2011. DOI : 10.1088/0953-8984/23/21/215004.Detailed record View at publisher2010

[31] Sliding of rough surfaces and energy dissipation with a 3D multiscale approach

G. Anciaux; J.-F. MolinariInternational Journal For Numerical Methods In Engineering. 2010. DOI : 10.1002/nme.2845.Detailed record View at publisher2009

[32] Contact mechanics at the nanoscale, a 3D multiscale approach

G. Anciaux; J.-F. MolinariInternational Journal For Numerical Methods In Engineering. 2009. DOI : 10.1002/nme.2590.Detailed record View at publisher

Research

Research Topics

My research can be decomposed in three main blocks:

First, the main goal of my current research is the physical description of contact interactions. I performed numerous studies of this topic using different models from the continuum scale down to atomistic scale. Since atomic phenomena and macroscopic observations are linked, the physics of contact needs the simultaneous consideration of several scales. For instance, plasticity is a theory defined for the macroscopic scale whereas the origins should be studied at the nanoscale.

Because of the limitations of purely theoretical approaches, I employ numerical modeling to obtain results when a closed form solution is unreachable. At the macroscopic scale, I use Finite Element Method (FEM) and Boundary Element Method (BEM). Molecular Dynamics (MD) is employed at the atomic scale while for an intermediate description of crystalline plasticity Discrete Dislocation Dynamics (DDD) is an efficient model. Various coupling strategies I participate in are at the intersection of these three modeling techniques.

Finally, my computer science experience in numerical modeling and in programming allows a fast and efficient implementation of modeling ideas developed in LSMS. Also, I am the main developer of the LibMultiScale project which is a coupling framework having the possibility to allow parallel communications of MD, DDD and FEM so as to achieve concurrent coupling of scales. I am sharing the responsibility of the development of the Akantu finite element library which is a new project hosted by the LSMS. I believe that the scientific community can benefit of these two advanced 3D parallel codes dedicated to solid mechanics. My work contributes to open-source codes, so that the concepts and methods can be used, implemented and applied by researchers within LSMS, ENAC, EPFL and world-wide.

Teaching & PhD

Teaching

Civil Engineering

Mathematics

PhD Programs

Doctoral Program in Civil and Environmental Engineering

Doctoral Program in Microsystems and Microelectronics

Doctoral Program in Mechanics

PhD Students

Alavi Parissasadat, Voisin--Leprince Manon Eugénie,

Past EPFL PhD Students

Cho Jaehyun , Frérot Lucas Henri Galilée , Pundir Mohit , Ramisetti Srinivasa Babu ,

Courses

Numerical modelling of solids and structures

Solids and structures numerical modeling is addressed through the finite-element method. Purely analytic aspects are first presented, before describing numerical interpolation, integration and resolution of solid mechanics problems by using various finite element types.

Program: Section of Civil Engineering

Programming concepts in scientific computing

The aim of this course is to provide the background in scientific computing. The class includes a brief introduction to basic programming in c , it then focus on object oriented programming and c specific programming techniques.