|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Mechanical Behavior at the Nanoscale III
||Multi Scale Modeling of Strain Softening and Failure of Single Wall Carbon Nanotube (SWCNT) Aerogels
||Ankit Gupta, Elizabeth A. Holm
|On-Site Speaker (Planned)
Single Wall Carbon Nanotubes (SWCNT) aerogels are random networks of SWCNTs governed by the van der Waals interaction at nodes. These aerogels show remarkable stiffness under very small compressive strain but they soften as the strain is increased and eventually collapse. Although this behavior has been linked to strain induced bond slip and node fracture, it has not been explored in detail. In this work we propose a model for studying the non-linear elastic behavior of a SWCNT random network using a multi scale modeling approach. Van der Waals interaction at the junctions between two nanotubes is modeled using Molecular Dynamics (MD). Results obtained from the atomistic simulation are fed into a Finite Element Model (FEM) to study the mechanical behavior of the random network of nanotubes at continuum scale.
||Planned: A print-only volume