Victor Conte Pozo | Universidad De Talca (original) (raw)

Victor Conte Pozo

Address: Teno, Curicó, Chile

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Papers by Victor Conte Pozo

Research paper thumbnail of Comment on: Size effects on yield strength and strain hardening for ultra-thin Cu films with and without passivation: A study by synchrotron and bulge test techniques

Scripta Materialia, 2012

ABSTRACT Copper sub-micron films are structured as columnar arrays of grains and are virtual two-... more ABSTRACT Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimensional polycrystalline solids. By modelling their plastic deformation by a two-dimensional flow of sliding deformable grains, a new perspective of the mechanical tests of Gruber et al. [Acta Mater. 56 (2008) 2318] is attained that reveals remarkable regularities which are missed by the more conventional analysis of the authors. The model shows that two-dimensional plasticity has significant qualitative differences from the three-dimensional counterpart.

Research paper thumbnail of Mathematical model for the plastic flow of a polycrystalline material medium

Scripta Materialia, 2011

Using a model that gives a realistic description of the plastic flow of polycrystals with refined... more Using a model that gives a realistic description of the plastic flow of polycrystals with refined grain size resulted in discrepancies being found in the postulates of the mathematical theory of plasticity. The new proposed time-dependent mathematical formulation predicts finite ...

Research paper thumbnail of Comment on: Size effects on yield strength and strain hardening for ultra-thin Cu films with and without passivation: A study by synchrotron and bulge test techniques

Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimension... more Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimensional polycrystalline solids. By modelling their plastic deformation by a two-dimensional flow of sliding deformable grains, a new perspective of the mechanical tests of Gruber et al. [Acta Mater. 56 (2008) 2318] is attained that reveals remarkable regularities which are missed by the more conventional analysis of the authors. The model shows that two-dimensional plasticity has significant qualitative differences from the three-dimensional counterpart.

Research paper thumbnail of Mathematical model for the plastic flow of a polycrystalline material medium

Using a model that gives a realistic description of the plastic flow of polycrystals with refined... more Using a model that gives a realistic description of the plastic flow of polycrystals with refined grain size resulted in discrepancies being found in the postulates of the mathematical theory of plasticity. The new proposed time-dependent mathematical formulation predicts finite ductility, temperature-dependent work strengthening and creep, in remarkable agreement with experiment. Insight is gained into the Bauschinger effect and necking instability.

Research paper thumbnail of Comment on: Size effects on yield strength and strain hardening for ultra-thin Cu films with and without passivation: A study by synchrotron and bulge test techniques

Scripta Materialia, 2012

ABSTRACT Copper sub-micron films are structured as columnar arrays of grains and are virtual two-... more ABSTRACT Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimensional polycrystalline solids. By modelling their plastic deformation by a two-dimensional flow of sliding deformable grains, a new perspective of the mechanical tests of Gruber et al. [Acta Mater. 56 (2008) 2318] is attained that reveals remarkable regularities which are missed by the more conventional analysis of the authors. The model shows that two-dimensional plasticity has significant qualitative differences from the three-dimensional counterpart.

Research paper thumbnail of Mathematical model for the plastic flow of a polycrystalline material medium

Scripta Materialia, 2011

Using a model that gives a realistic description of the plastic flow of polycrystals with refined... more Using a model that gives a realistic description of the plastic flow of polycrystals with refined grain size resulted in discrepancies being found in the postulates of the mathematical theory of plasticity. The new proposed time-dependent mathematical formulation predicts finite ...

Research paper thumbnail of Comment on: Size effects on yield strength and strain hardening for ultra-thin Cu films with and without passivation: A study by synchrotron and bulge test techniques

Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimension... more Copper sub-micron films are structured as columnar arrays of grains and are virtual two-dimensional polycrystalline solids. By modelling their plastic deformation by a two-dimensional flow of sliding deformable grains, a new perspective of the mechanical tests of Gruber et al. [Acta Mater. 56 (2008) 2318] is attained that reveals remarkable regularities which are missed by the more conventional analysis of the authors. The model shows that two-dimensional plasticity has significant qualitative differences from the three-dimensional counterpart.

Research paper thumbnail of Mathematical model for the plastic flow of a polycrystalline material medium

Using a model that gives a realistic description of the plastic flow of polycrystals with refined... more Using a model that gives a realistic description of the plastic flow of polycrystals with refined grain size resulted in discrepancies being found in the postulates of the mathematical theory of plasticity. The new proposed time-dependent mathematical formulation predicts finite ductility, temperature-dependent work strengthening and creep, in remarkable agreement with experiment. Insight is gained into the Bauschinger effect and necking instability.

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