371 citations · 1.7k across the 60 of their papers we have counts for
6 papers · 1 filter
Avalanche dynamics in hierarchical fiber bundles
Soumyajyoti Biswas, Michael Zaiser
Heterogeneous materials are often organized in a hierarchical manner, where a basic unit is repeated over multiple scales.The structure then acquires a self-similar pattern. Exampl…
Slip avalanches in crystal plasticity: scaling of the avalanche cutoff
Michael Zaiser, Nikos Nikitas
Plastic deformation of crystals proceeds through a sequence of intermittent slip avalanches with scale-free (power-law) size distribution. On macroscopic scales, however, plastic f…
Self-affine surface morphology of plastically deformed metals
Michael Zaiser, Frederic Maqdani, Vasileios Koutsos +1
We analyze the surface morphology of metals after plastic deformation over a range of scales from 10 nm to 2 mm, using a combination of atomic force microscopy and scanning white-l…
Depinning transition of dislocation assemblies: pileup and low-angle grain boundary
Paolo Moretti, M. -Carmen Miguel, Michael Zaiser +1
We investigate the depinning transition occurring in dislocation assemblies. In particular, we consider the cases of regularly spaced pileups and low angle grain boundaries interac…
Growth of a vortex polycrystal in type II superconductors
Paolo Moretti, M. -Carmen Miguel, Michael Zaiser +1
We discuss the formation of a vortex polycrystal in type II superconductors from the competition between pinning and elastic forces. We compute the elastic energy of a deformed gra…
Dislocation jamming and Andrade creep
M. -Carmen Miguel, Alessandro Vespignani, Michael Zaiser +1
We simulate the glide motion of an assembly of interacting dislocations under the action of an external shear stress and show that the associated plastic creep relaxation follows A…