Atomistic finite deformation simulations: a discussion on length scale effects in relation to mechanical stresses

Article Abstract:

Research was conducted to illustrate the usefulness of the Embedded Atom Method in the study of atomistic finite deformation simulations. Three items of interest to the field of continuum mechanics were observed, namely, a spatial size scale effect, oscillating global shear stress under simple shear conditions and a length scale bridging idea that is proposed to demonstrate the bridging of spatial length scales related to plastic energy.

Models, Plasticity, Deformations (Mechanics), Deformation, Dislocations in crystals, Dislocations (Crystals), Continuum mechanics

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Tetragonal phase transformation in gold nanowires

Article Abstract:

The tetragonal phase transformation in gold nanowires is examined with the help of first principle tight binding and semi-empirical embedded atom calculations. Results indicate the capabilities of surface stresses in inducing phase transformation and subsequent phase stability in nanometer scale metallic wires under appropriate conditions.

United States, Science & research, Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Gold, Nanotechnology, Strains and stresses, Stresses (Materials), Mechanical properties

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