Elastic Properties of Nanowires
Alexandre F. da Fonseca, C. P. Malta, D. S. Galv\~ao
TL;DR
This paper develops a model to analyze the elastic properties of amorphous nanowires, specifically Young's modulus and Poisson's ratio, using the Kirchhoff rod model and proposing an experimental setup.
Contribution
It extends previous models to include amorphous nanowires and introduces a method to experimentally determine their elastic parameters.
Findings
Derived expressions for elastic constants of nanowires.
Proposed an experimental setup for measuring elastic parameters.
Extended existing models to amorphous nanostructures.
Abstract
We present a model to study Young's modulus and Poisson's ratio of the composite material of amorphous nanowires. It is an extension of the model derived by two of us [Da Fonseca and Galvao, Phys. Rev. Lett. 92, 175502 (2004)] to study the elastic properties of amorphous nanosprings. The model is based on twisting and tensioning a straight nanowire and we propose an experimental setup to obtain the elastic parameters of the nanowire. We used the Kirchhoff rod model to obtain the expressions for the elastic constants of the nanowire.
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