Crystal plasticity is mediated through dislocations, which form knotted configurations in a
complex energy landscape. Once they disentangle and move, they may also be impeded by …

Crystal plasticity occurs by deformation bursts due to the avalanchelike motion of
dislocations. Here we perform extensive numerical simulations of a three-dimensional …

The universality class of the avalanche behavior in plastically deforming crystalline and
amorphous systems has been commonly discussed, despite the fact that the microscopic …

We report direct measurements of displacement jump velocities in deforming nano-and
microcrystals. These velocities exhibit large scatter and no correlation with plastic strain …

Plastic deformation in crystalline materials consists of an ensemble of collective dislocation
glide processes, which lead to strain burst emissions in micro-scale samples. To unravel the …

Although scaling phenomena have long been documented in crystalline plasticity, the
universality class has been difficult to identify due to the rarity of avalanche events, which …

Predicting the strain hardening properties of crystals constitutes a long-standing challenge
for dislocation theory. The main difficulty resides in the integration of dislocation processes …

Dislocations are the most important material defects in crystal plasticity, and although
dislocation mechanics has long been understood as the underlying physical basis for …

Through three-dimensional discrete dislocation dynamics simulations, we show that by
tuning the mode of external loading, the collective dynamics of dislocations undergo a …

Discrete stress relaxations (slip avalanches) in a model metallic glass under uniaxial
compression are studied using a metadynamics algorithm for molecular simulation at …