Accession Number : AD1008224

Title :   Multiscale Modeling of Graphite/CNT/Epoxy Hybrid Composites

Descriptive Note : Technical Report,15 Jan 2013,14 Jan 2016

Corporate Author : Michigan Technological University Houghton United States

Personal Author(s) : Odegard,Gregory M

Full Text :

Report Date : 09 Mar 2016

Pagination or Media Count : 13

Abstract : Incorporation of carbon nanotubes (CNTs) into epoxy-based composites for aerospace structures has been limited because of the lack of reliable structure-property relationships. Because CNTs are expensive and difficult to fabricate and test, the development of CNT/epoxy composites needs to be facilitated with computational techniques. In this work, multiscale modeling techniques have been used to predict the influence ofatomic-level structure on bulk mechanical properties of CNT/epoxy composites. In particular, a reactive force field has been used within the MD framework to predict the mechanical response of CNT/epoxy composites with di-, tri-, and tetra-functional epoxies. The results of the research indicate that tri-functional epoxies provide the highest level of CNT/epoxy load transfer, resulting in bulk materials with higher moduli and strength characteristics.

Descriptors :   graphite , epoxy composites , composite materials , carbon nanotubes , molecular dynamics , micromechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE