Serration and noise behaviors in plastically deforming solids are related to avalanches of
deformation processes. In the stress-strain curves, the serration characteristics are visible as …

Prior to macroscopic yielding, most materials undergo a regime of plastic activity that cannot
be resolved in conventional bulk deformation experiments. In this pre-yield, or micro-plastic …

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 …

The extreme miniaturization in modern technology calls for deeper insights into the non-
conventional, fluctuation dominated mechanics of materials operating at microscale. For …

Micro-tensile specimens of nickel-based superalloy oligocrystals were tested in-situ in an
scanning electron microscope in transmission mode (TSEM) enabling observation of …

Acoustic emission (AE) measurements of avalanches in different systems, such as domain
movements in ferroics or the collapse of voids in porous materials, cannot be compared with …

We demonstrate, through three-dimensional discrete dislocation dynamics simulations, that
the complex dynamical response of nano-and microcrystals to external constraints can be …

Plasticity in body centered cubic (BCC) crystals is shown to be controlled by slow screw
dislocation motion, owing to the thermally-activated process of kink pair nucleation and …

Abstract The Portevin-Le Chatelier (PLC) effect is a phenomenon by which plastic slip in
metallic materials becomes unstable, resulting in jerky flow and the onset of inhomogeneous …

While many organisms synthesize robust skeletal composites consisting of spatially discrete
organic and mineral (ceramic) phases, the intrinsic mechanical properties of the mineral …