Equivalent-continuum Modeling of Nano-structured Materials
Author | : Gregory M. Odegard |
Publisher | : |
Total Pages | : 38 |
Release | : 2001 |
ISBN-10 | : NASA:31769000642572 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Equivalent-continuum Modeling of Nano-structured Materials written by Gregory M. Odegard and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method has been developed for modeling structure-property relationships of nano-structured materials. This method serves as a link between computational chemistry and solid mechanics by substituting discrete molecular structures with an equivalent-continuum model. It has been shown that this substitution may be accomplished by equating the vibrational potential energy of a nano-structured material with the strain energy of representative truss and continuum models. As an important example with direct application to the development and characterization of single-walled carbon nanotubes, the model has been applied to determine the effective continuum geometry of a graphene sheet. A representative volume element of the equivalent-continuum model has been developed with an effective thickness. This effective thickness has been shown to be similar to, but slightly smaller than, the interatomic spacing of graphite.