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 …

Nanoparticles are commonly used in various fields of applications such as electronics,
catalysis or engineering where they can be subjected to a certain amount of stress leading …

To understand the underlying mechanisms that control the mechanical properties of
nanostructured metals, an insight into the role of the grain boundary in dislocation-driven …

The 'dislocation source'controlled plastic behaviors in submicron single crystals, which differ
significantly from macroscopic plastic flow, are widely observed in recent in situ TEM tests. In …

Multiscale models of materials, consisting of upscaling discrete simulations to continuum
models, are unique in their capability to simulate complex materials behavior. The …

A new and efficient formulation of the Discrete-Continuous Model (DCM) for the simulation of
3D dislocation dynamics in complex finite or periodic volumes is presented. As in previous …

Homogeneous interfaces like grain boundaries (GBs) play an important role in crystalline
plasticity as they often serve as obstacles for dislocation motion, as well as dislocation …

Molecular dynamics are employed to simulate the compression process of Al nanopillars
with different orientations. The simulations show that the initial dislocations always nucleate …

Uniaxial tension and compression experiments on [001] and [011] oriented molybdenum
nano-pillars exhibit tension–compression asymmetry, a difference in attained stresses in …

The influence of microstructure on the strength scaling behaviour of ultrafine-grained bcc
metals is investigated by scale-bridging experiments spanning four orders of length on …