Effect of fluid medium on mechanical behavior of carbon nanotube foam
Abstract
This study reports the constitutive response and energy absorption capabilities of fluid-impregnated carbon nanotube (CNT) foams under compressive loading as a function of fluid viscosity and loading rates. At all strain rates tested, we observe two characteristic regimes: below a critical value, increasing fluid viscosity increases the load bearing and energy absorption capacities; after a critical value of the fluid's viscosity, we observe a rapid decrease in the systems' mechanical performance. For a given fluid viscosity, the load bearing capacity of the structure slightly decreases with strain rate. A phenomenological model, accounting for fluid-CNT interaction, is developed to explain the observed mechanical behavior.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 02, 2014
- Source ID
- 10.1063/1.4881843
Entities
People
- Abha Misra
- Anish Singhal
- Chiara Daraio
- Jordan R. Raney
- Ludovica Lattanzi
- Praveen Kumar
Organizations
- Army Research Office
- Baylor University
- California Institute of Technology
- ETH Zurich
- Indian Institute of Science, Bengaluru