Listar Artículos WOS por autor "Ruestes, Carlos J."
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Effect of subsurface voids on the nanoindentation of Fe crystals
Hofer, Juan A.; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Urbassek, Herbert M. (IOP Publishing Ltd., 2020-03)Subsurface voids may strongly affect the response of materials to nanoindentation. We explore these effects for a bcc single-crystalline Fe sample using molecular dynamics simulation. Deformation occurs mainly by nucleation ... -
Effect of Tip Roundness on the Nanoindentation of Fe Crystals
Clara Zonana, M.; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Urbassek, Herbert M. (Springer New York, 2020-04)Indentation tips are never atomically sharp, but rounded at their end. We use atomistic simulation to study the effect of tip roundness for the particular case of a cube-corner pyramidal indenter by comparing the results ... -
FoamExplorer: Automated measurement of ligaments and voids for atomistic systems
Aparicio, Emiliano; Millan, Emmanuel N.; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile] (Elsevier, 2020-12)Atomistic simulations are often used to explore the mechanical and chemical properties of a variety of materials and structures, such as nanowires, whiskers, nanospheres, nanotrusses, and nanoscale foams, among others. ... -
Indentation and scratching of iron by a rotating tool-a molecular dynamics study
Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Alhafez, Iyad Alabd; Ruestes, Carlos J.; Urbassek, Herbert M. (ELSEVIER, 2021-06-15)When abrasive particles interact with a surface, besides translational center-of-mass motion also rotational motion of the abrasive may be involved. We perform molecular dynamics simulations of the influence of the rotational ... -
Nanoindentation of polycrystalline Pd hollow nanoparticles: Grain size role
Pinto, Benjamin [Univ Mayor, Escuela Construcc, Chile]; Valencia, Felipe J. [Univ Mayor, Fac Estudios Interdisciplinarios, Ctr Invest DAiTA Lab, Chile]; Kiwi, Miguel; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Rogan, José (Elsevier, 2020-06)Polycrystalline hollow nanoparticles present a unique combination of strength and flexibility. However, the exact role displayed by their grain structure in mechanical properties has not been yet fully understood. Here, ... -
Simulated nanoindentation into single-phase fcc FexNi1-x alloys predicts maximum hardness for equiatomic stoichiometry
Alabd Alhafez, Iyad; Deluigi, Orlando R.; Tramontina, Diego; Ruestes, Carlos J.; Bringa, Eduardo M. [Univ Mayor, Ctr Nanotecnol Aplicada, Chile]; Urbassek, Herbert M. (NATURE PORTFOLIO, 2023-06-16)We investigate by molecular dynamics simulation the mechanical behavior of concentrated alloys under nanoindentation for the special example of single-phase fcc FexNi1-x alloys. The indentation hardness is maximum for the ...