Ngô, B.-N. D. ; Roschning, B. ; Albe, K. ; Weissmüller, J. ; Markmann, J. (2017)
On the origin of the anomalous compliance of dealloying-derived nanoporous gold.
In: Scripta Materialia, 130
doi: 10.1016/j.scriptamat.2016.11.006
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The origin of the anomalously compliant behavior of nanoporous gold is studied by comparing the elasticity obtained from molecular dynamics (MD) and finite element method (FEM) simulations. Both models yield a compliance, which is much higher than the predictions of the Gibson-Ashby scaling relation for metal foams and thus confirm the influence of other microstructural features besides the porosity. The linear elastic FEM simulation also yields a substantially stiffer response than the MD simulation, which reveals that nonlinear elastic behavior contributes decisively to the anomalous compliance of nanoporous gold at small structure size.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Ngô, B.-N. D. ; Roschning, B. ; Albe, K. ; Weissmüller, J. ; Markmann, J. |
| Art des Eintrags: | Bibliographie |
| Titel: | On the origin of the anomalous compliance of dealloying-derived nanoporous gold |
| Sprache: | Englisch |
| Publikationsjahr: | 15 März 2017 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scripta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 130 |
| DOI: | 10.1016/j.scriptamat.2016.11.006 |
| Kurzbeschreibung (Abstract): | The origin of the anomalously compliant behavior of nanoporous gold is studied by comparing the elasticity obtained from molecular dynamics (MD) and finite element method (FEM) simulations. Both models yield a compliance, which is much higher than the predictions of the Gibson-Ashby scaling relation for metal foams and thus confirm the influence of other microstructural features besides the porosity. The linear elastic FEM simulation also yields a substantially stiffer response than the MD simulation, which reveals that nonlinear elastic behavior contributes decisively to the anomalous compliance of nanoporous gold at small structure size. |
| Freie Schlagworte: | Nanoporous, Molecular dynamics, Finite element modeling, Elasticity of nanomaterials, Surface effects |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 13 Jul 2017 08:26 |
| Letzte Änderung: | 13 Jul 2017 08:26 |
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