128 citations · 229 across the 8 of their papers we have counts for
5 papers · 1 filter
Morphology of graphene flakes in Ni-graphene nanocomposites and its influence on hardness: an atomistic study
Vardan Hoviki Vardanyan, Herbert M. Urbassek
The effect of graphene flakes on the strength of Ni-graphene composites is investigated using molecular dynamics simulation. Rather than introducing flakes as flat structures into…
Nanoscratching of iron: a novel approach to characterize dislocation microstructures
Nina Gunkelmann, Iyad Alabd Alhafez, Dominik Steinberger +2
A new approach for characterizing the dislocation microstructure obtained from atomistic simulations is introduced, which relies on converting properties of discrete lines to conti…
Influence of crystal anisotropy on elastic deformation and onset of plasticity in nanoindentation -- a simulational study
Gerolf Ziegenhain, Herbert M. Urbassek, Alexander Hartmaier
Using molecular-dynamics simulation and finite-element modelling, we simulate nanoindentation into the three principal surfaces -- the (100), (110) and (111) surface -- of Cu and A…
Cluster-induced crater formation
Christian Anders, Gerolf Ziegenhain, Steffen Zimmermann +1
Using molecular-dynamics simulation, we study the crater volumes induced by energetic impacts ( km/s) of projectiles containing up to N=1000 atoms. We find that for Lenn…
Pair vs many-body potentials: influence on elastic and plastic behavior in nanoindentation
Gerolf Ziegenhain, Alexander Hartmaier, Herbert M. Urbassek
Molecular-dynamics simulation can give atomistic information on the processes occurring in nanoindentation experiments. In particular, the nucleation of dislocation loops, their gr…