Atomistic mechanisms governing elastic limit and incipient plasticity in crystals

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Atomistic simulations of incipient plasticity under Al(1 1 1) nanoindentation (2005, methodology): “The repulsive potential of indenter tip, as in Li et al. (2002), is here used as V tipðrÞ ¼ exp R rd dR r ; r < R 0; r P R ð1Þ where d is a parameter controlling the hardness of indenter tip.”
Recent advances in single-asperity nanotribology (2008, positive): “For example, discrete pop-ins in the P–h response were correlated with nucleation and propagation of dislocations [126, 129–131], and with structural transformations as in the case of the zinc-blende to rocksalt transition observed in MD simulations of GaAs [132].”
A realistic molecular model of cement hydrates (2009, background): “This type of intermittent or saw-tooth behavior has been observed in deformation simulation of metallic glasses (25), glassy polymers (26) as well as nanoindentationinduced dislocation nucleation (27).”