Dieses Dokument steht unter einer CreativeCommons Lizenz by/4.0
Verlagslink DOI: 10.1061/(ASCE)NM.2153-5477.0000126
Titel: Effect of surface slasticity on the elastic response of nanoporous gold
Sprache: English
Autor/Autorin: Soyarslan, Celal 
Husser, Edgar 
Bargmann, Swantje 
Erscheinungsdatum: 2017
Verlag: ASCE
Quellenangabe: Journal of Nanomechanics and Micromechanics 4 (7): 04017013- (2017)
Zeitschrift oder Schriftenreihe: Journal of Nanomechanics and Micromechanics 
Zusammenfassung (englisch): In this work, the effect of surface elasticity on the effective elastic properties of nanoporous gold is studied. To this end, a theoretical framework for surface elasticity effects in submicron-sized solids is implemented as a user-defined finite element subroutine. This allows the use of the theory in large-scale engineering problems. The theory suggests a zero-thickness surface accommodating unique energetic properties and surface tension. For the example of ball-and-stick diamond cubic unit cell structures for nanoporous gold, it is shown that incorporation of surface excess elasticity and surface tension allows prediction of the size effect associated with the change of the surface area-to-volume ratio by capturing, e.g., the increase in the effective Young’s modulus and decrease in the effective Poisson’s ratio with decreasing ligament diameter, a phenomenon that is not accessible to classical continuum elasticity approaches.
URI: http://tubdok.tub.tuhh.de/handle/11420/1685
DOI: 10.15480/882.1682
ISSN: 2153-5434
Institut: Keramische Hochleistungswerkstoffe M-9 
Kontinuums- und Werkstoffmechanik M-15 
Dokumenttyp: (wissenschaftlicher) Artikel
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