|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Multiscale Architectured Materials (MAM II): Tailoring Mechanical Incompatibility for Superior Properties
||Multi Scale Modeling of Mechanical Behavior of Covalently Cross-linked SWCNT Aerogels
||Ankit Gupta, Andy Jiang, Elizabeth A. Holm
|On-Site Speaker (Planned)
Single Wall Carbon Nanotubes (SWCNT) form random networks in aerogels that are governed by the van der Waals interaction at nodes. These aerogels show high initial stiffness as compared to other classes of aerogels. However, they tend to deform in a plastic manner for strains>9%. Recently there have been some experimental studies showing that nanotubes in these aerogels can be covalently cross-linked. The cross-linking is supposed to improve stiffness as well as the yield strength of these materials. In this study, we model mechanical behavior of such aerogels using a multi-scale modeling approach. The model uses Molecular Dynamics (MD) simulations to model polymer cross-links between nanotubes and a Finite Element Model (FEM) to study the mechanical behavior of such networks at continuum scale.