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About this Abstract
Meeting	MS&T24: Materials Science & Technology
Symposium	Advances in Multiphysics Modeling and Multi-modal Imaging of Functional Materials
Presentation Title	Nanocomposite Electrical Generators: A Multiscale Approach
Author(s)	Kasra Momeni
On-Site Speaker (Planned)	Kasra Momeni
Abstract Scope	A multiscale approach is used to create a modified shear-lag model that captures size-scale effects on the electrostatic potential generated by a zinc oxide (ZnO) nanowire (NW) in a nanocomposite electrical generator (NCEG). A core-surface model is used to investigate the effect of size on the elastic modulus of ZnO NWs. The closed form of the governing equations for axisymmetric and cylindrical coordinate systems is derived using linear elasticity. Additionally, two alternative NCEG configurations for use in NEMS/MEMS devices are examined based on parallel and series connections of ZnO NWs. To illustrate the practical implementation of the constructed model, parametric analyses are conducted on representative instances. The importance of the aspect ratio and diameter of NWs as performance-determining parameters for NCEG is demonstrated. These numerical results show that each NW of a specific diameter has an optimal aspect ratio and the electric potential is asymmetric.

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