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In this paper the mechanical response of single-crystal nano-sized Cu beams of different sizes, loaded in displacement controlled tension under constant strain rate is investigated through 3D molecular dynamic simulations using the free-ware LAMMPS. The effects from pure geometric scaling are determined for two different crystallographic orientations of the lattice. Stress-strain curves were recorded until rupture of the beams and the developments of the atomic arrangements were followed in detail. The elastic parts of the curves showed to be non-linear and that size effects to some extend influenced the elastic and significantly the plastic mechanical response. Further the crystallographic orientation markedly influenced the response to mechanical loading.
|Number of pages||8|
|Journal||Computational Materials Science|
|Publication status||Published - 2017|
Subject classification (UKÄ)
- Engineering and Technology
- Applied Mechanics
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