128 citations · 209 across the 5 of their papers we have counts for
4 papers · 1 filter
Free energy function of dislocation densities by large scale atomistic simulation
Christoph Begau, Godehard Sutmann, Alexander Hartmaier
This paper discusses the free energy of complex dislocation microstructures, which is a fundamental property of continuum plasticity. In the past, multiple models of the self energ…
Ab-initio tensile tests of Al bulk crystals and grain boundaries: on the universality of mechanical behaviour
Rebecca Janisch, Naveed Ahmed, Alexander Hartmaier
We have performed ab-initio tensile tests of bulk Al along different tensile axes, as well as perpendicular to different grain boundaries to determine mechanical properties such as…
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…
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…