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Homogenization technique of discrete atoms into smeared continuum
Authors:YW Kwon  C Manthena
Affiliation:

aDepartment of Mechanical and Astronautical Engineering, Watkins Hall, Naval Postgraduate School, Monterey, CA 93943, USA

bDepartment of Mechanical Engineering and Energy Processes, Southern Illinois University, Carbondale, IL 62901-6603, USA

Abstract:A homogenization technique was developed and presented to replace a discrete atomic domain by an equivalent continuum domain that could be discretized into finite elements. Equivalent material properties of the smeared continuum domain were computed from the atomic model. Using the developed technique, a computationally efficient analysis could be performed for a large size of domain by proper mixture of a discrete atomic region and a smeared continuum region. In addition, this technique provided a means for multi-scale analysis. Examples for static and dynamic analyses were provided to demonstrate the technique.
Keywords:Homogenization  Atomic model  Continuum model  Carbon nanotube  Vibration  Static analysis
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