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7 papers · 2 filters
A Model for Conductive Percolation in Ordered Nanowire Arrays
J. L. Silverberg
The combined processes of anodization and electrodeposition lead to highly ordered arrays of cylindrical nanowires. This template-based self-assembly fabrication method yields nano…
Method for Computing Short-Range Forces between Solid-Liquid Interfaces Driving Grain Boundary Premelting
J. J. Hoyt, David Olmsted, Saryu Jindal +2
We present a molecular dynamics based method for computing accurately short-range structural forces resulting from the overlap of spatially diffuse solid-liquid interfaces at wette…
Phase-field crystal study of grain-boundary premelting
Jesper Mellenthin, Alain Karma, Mathis Plapp
We study the phenomenon of grain-boundary premelting for temperatures below the melting point in the phase-field crystal model of a pure material with hexagonal ordering in two dim…
Laws of crack motion and phase-field models of fracture
Vincent Hakim, Alain Karma
Recently proposed phase-field models offer self-consistent descriptions of brittle fracture. Here, we analyze these theories in the quasistatic regime of crack propagation. We show…
Static and Dry Friction due to Multiscale Surface Roughness
J. B. Sokoloff
It is shown on the basis of scaling arguments that a disordered interface between two elastic solids will quite generally exhibit static and "dry friction" (i.e., kinetic friction…
Crack growth by surface diffusion in viscoelastic media
R. Spatschek, E. A. Brener, D. Pilipenko
We discuss steady state crack growth in the spirit of a free boundary problem. It turns out that mode I and mode III situations are very different from each other: In particular, m…