Role of local order in the small-scale plasticity of model amorphous materials

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

Volumn 82, Issue 6, 2010, Pages

  Fusco, C ^a,b   Albaret, T ^a,b   Tanguy, A ^a,b  

^a UNIVERSITÉ DE LYON   (France)

^b CNRS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

AMORPHOUS PLASTICITY; AMORPHOUS SOLIDS; AMORPHOUS SYSTEMS; COORDINATION DEFECTS; FERTILE SITES; INTERATOMIC INTERACTIONS; LOCAL DEFECTS; LOCAL ORDER; PEIERLS-NABARRO; QUENCHING RATE; SHEAR TRANSFORMATION; STRESS-STRAIN BEHAVIORS; STRUCTURE CHANGE;

BEHAVIORAL RESEARCH; DEFECTS; PLASTICITY;

AMORPHOUS MATERIALS;

EID: 78651430765     PISSN: 15393755     EISSN: 15502376     Source Type: Journal    
DOI: 10.1103/PhysRevE.82.066116     Document Type: Article

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44. Note that for λ = 0, corresponding to pure two-body interactions, this is not the case as seen in Lennard-Jones glasses where the average environment of the atoms remains the same during the shear deformation.
45. The parameters used for the intensity differences and for the nonaffine displacements have been chosen by comparing the variations of the total PE (r) energy integrated over all the basins and the total dissipated energy as a function of strain. It shows a very good qualitative agreement between them, even after a change by a factor 2 of any of these parameters. Note that the total number of plastic events would be slightly affected by the suppression of one of the parameters used to identify the pertinent basins, but neither the cumulative plastic energy (Fig.), nor the conclusions about the correlation function between plastic events and defects (Fig.) are changed.