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Acta Mechanica Sinica
Erschienen in: Acta Mechanica Sinica 4/2015

01.08.2015 | Research Paper

Nanoindentation of soft solids by a flat punch

verfasst von: G. F. Wang, X. R. Niu

Erschienen in: Acta Mechanica Sinica | Ausgabe 4/2015

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Abstract

Measuring the surface tension and elastic modulus of soft materials and biological tissues under different physiological and pathological conditions is of significance for understanding various phenomena associated with deformation. In this paper, the nanoindentation of a circular flat punch on a soft solid is analyzed with the influence of surface tension. By solving the corresponding singular integral equation, the relation between load and indent depth is obtained. When the radius of the flat punch shrinks to the same order as the ratio of surface tension to elastic modulus, surface tension significantly affects the indentation load–depth relation, which provides a facile method to measure surface tension in soft solids and biological tissues.

Graphical Abstract

The nanoindentation of a circular flat punch on a soft solid is analyzed with the influence of surface tension. By solving the corresponding singular integral equation, the relation between load and indent depth is obtained. When the radius of a flat punch shrinks to the same order as the ratio of surface tension to elastic modulus, surface tension significantly affects the indentation load–depth relation, which provides a facile method to measure surface tension in soft solids and biological tissues.
Vorheriger Artikel Analytical and numerical studies on a single-droplet evaporation and combustion under forced convection
Nächster Artikel Topology optimization design of micro-mass sensors for maximizing detection sensitivity

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Metadaten
Titel
Nanoindentation of soft solids by a flat punch
verfasst von
G. F. Wang
X. R. Niu
Publikationsdatum
01.08.2015
Verlag
The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences
Erschienen in
Acta Mechanica Sinica / Ausgabe 4/2015
Print ISSN: 0567-7718
Elektronische ISSN: 1614-3116
DOI
https://doi.org/10.1007/s10409-015-0440-7

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