Personne
Till Junge
Cette personne n’est plus à l’EPFL
Publications associées (20)
An optimal preconditioned FFT-accelerated finite element solver for homogenization
Till Junge, Ali Falsafi, Martin Ladecký
We generalize and provide a linear algebra-based perspective on a finite element (FE) ho-mogenization scheme, pioneered by Schneider et al. (2017)[1] and Leuschner and Fritzen (2018)[2]. The efficiency of the scheme is based on a preconditioned, well-scale ...
ELSEVIER SCIENCE INC2023Contact.engineering-Create, analyze and publish digital surface twins from topography measurements across many scales
The optimization of surface finish to improve performance, such as adhesion, friction, wear, fatigue life, or interfacial transport, occurs largely through trial and error, despite significant advancements in the relevant science. There are three central c ...
IOP Publishing Ltd2022Elimination of ringing artifacts by finite-element projection in FFT-based homogenization
Till Junge, Ali Falsafi, Martin Ladecký
Micromechanical homogenization is often carried out with Fourier-accelerated methods that are prone to ringing artifacts. We here generalize the compatibility projection introduced by Vond.rejc et al. (2014) [24] beyond the Fourier basis. In particular, we ...
ACADEMIC PRESS INC ELSEVIER SCIENCE2022Efficient implementation of atom-density representations
Michele Ceriotti, Till Junge, Guillaume André Jean Fraux, Félix Benedito Clément Musil, Michael John Willatt, Max David Veit, Alexander Jan Goscinski
Physically motivated and mathematically robust atom-centered representations of molecular structures are key to the success of modern atomistic machine learning. They lie at the foundation of a wide range of methods to predict the properties of both materi ...
2021The emergence of small-scale self-affine surface roughness from deformation
Most natural and man-made surfaces appear to be rough on many length scales. There is presently no unifying theory of the origin of roughness or the self-affine nature of surface topography. One likely contributor to the formation of roughness is deformati ...
AMER ASSOC ADVANCEMENT SCIENCE2020Atomistic-continuum coupling of random alloys
William Curtin, Till Junge, Shankha Nag
Random alloys are multicomponent systems where the atomic type on each lattice site is independent of the atom types on any other lattice site. The fluctuations in local atomic configurations inherent to the random alloy prevents the accurate application o ...
IOP PUBLISHING LTD2019Coupled Atomistics and Discrete Dislocations in 3d (CADD-3d)
Jean-François Molinari, William Curtin, Guillaume Anciaux, Till Junge, Jaehyun Cho, Max Ludwig Hodapp
Capturing plasticity at realistic dislocation densities with high configurational complexity requires a continuum-leveldiscrete dislocation dynamics (DDD) description. However, many features controlling dislocation motion areinherently atomistic, such as t ...
2018Ab initio Modelling of the Early Stages of Precipitation in Al-6000 Alloys
William Curtin, Michele Ceriotti, Till Junge, Daniele Giofré
Age hardening induced by the formation of (semi)-coherent precipitate phases is crucial for the processing and final properties of the widely used Al-6000 alloys. Early stages of precipitation are particularly important from the fundamental and technologic ...
Elsevier2017Neural network potential for Al-Mg-Si alloys
William Curtin, Michele Ceriotti, Till Junge, Daniele Giofré
The 6000 series Al alloys, which include a few percent of Mg and Si, are important in automotive and aviation industries because of their low weight, as compared to steels, and the fact their strength can be greatly improved through engineered precipitatio ...
Amer Physical Soc2017Quantitative characterization of surface topography using spectral analysis
Roughness determines many functional properties of surfaces, such as adhesion, friction, and (thermal and electrical) contact conductance. Recent analytical models and simulations enable quantitative prediction of these properties from knowledge of the pow ...
2016