Author

L. Pastewka

2 papers indexed here

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Preprint Oct 2026

Universal energy barrier for plastic flow in a network glass

Shear transformations are the elementary events of plasticity in glasses and underpin many mesoscopic models of plastic flow, yet their atomic origin and energetics remain difficult to establish. Here we use a machine-learned interatomic potential to show that, in amorphous carbon as a representative network glass, a s...

Ibrahim Ghanem, Richard Jana, Wolfram G. Nohring et al. · 1 citation

Preprint Aug 2026

Nonparametric multiscale modeling of boundary lubrication: hexadecane in highly pressurized gold asperity contacts

Boundary lubrication is governed by molecular processes at the sliding interface that are inaccessible to classical continuum descriptions. While molecular dynamics (MD) simulations can resolve these processes in atomistic detail, incorporating their output into engineering-scale models through semi-empirical constitut...

Hannes Holey, Michael Moseler, P. Gumbsch et al. · 0 citations