A twofold decrease to an unexplored scale of 5 nm was produced in Cu by applying a large
sliding load in liquid nitrogen. Statistical and universal scaling analyses of deformation …

The mechanical behavior of bicrystalline aluminum nano-pillars under uniaxial compression
reveals size effects, a stochastic stress–strain signature, and strain hardening. Pillar …

Mechanical testing of micropillars is a field that involves new physics, as the behaviour of
materials is non-deterministic at this scale. To better understand their deformation …

We perform a series of molecular dynamics simulations of the uniaxial compression of
cylindrical gold nanopillars. Yield occurs via Shockley partial dislocation nucleation at the …

Plasticity of body-centered cubic (bcc) crystals is known to have a strong dependence on
temperature, as a direct consequence of the thermally-activated process of kink pair …

The fundamental processes that govern plasticity and determine strength in crystalline
materials at small length scales have been studied for over fifty years,,. Recent studies of …

Plastic flow in crystal at submicron-to-nanometer scales involves many new interesting
problems. In this paper, a unified computational model which directly combines 3D discrete …

Dislocation dynamics simulations have been used to study the stress-strain response of
single-crystal micropillars containing initial dislocation networks generated via a relaxation …

We perform three-dimensional dislocation dynamics simulations of solid and annular pillars,
having both free-surface boundary conditions, or strong barriers at the outer and/or inner …

We investigate deformation in high quality Au nanowires under both tension and bending
using in-situ transmission electron microscopy. Defect evolution is investigated during:(1) …