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Proceedings Paper

Analysis of damping characteristics of a viscoelastic polymer filled with randomly oriented single-wall nanotube ropes
Author(s): Ailin Liu; Kon-Wei Wang; Charles E. Bakis; Jin H. Huang
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Paper Abstract

This paper presents an analysis on the structural damping characteristics of polymeric composites containing dilute, randomly oriented nanoropes. The SWNT (single-wall nanotube) rope is modeled as a closed-packed lattice consisting of seven nanotubes in hexagonal array. The resin is described as a viscoelastic material using two models: Maxwell model and three-element standard solid model. The composite is modeled as a three-phase system consisting of a resin, a resin sheath acting as a shear transfer zone, and SWNT ropes. The "stick-slip" mechanism is proposed to describe the load transfer behavior between a nanorope and a sheath and between individual SWNTs. The analytical results indicate that the loss factor of the composite is sensitive to stress magnitude. It is illustrated that the "stick-slip" friction is the main contribution for the total loss factor of CNT-based composites even with a small amount of nanotubes/ropes.

Paper Details

Date Published: 16 March 2006
PDF: 17 pages
Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 616911 (16 March 2006); doi: 10.1117/12.658586
Show Author Affiliations
Ailin Liu, The Pennsylvania State Univ. (United States)
Kon-Wei Wang, The Pennsylvania State Univ. (United States)
Charles E. Bakis, The Pennsylvania State Univ. (United States)
Jin H. Huang, Feng Chia Univ. (Taiwan)

Published in SPIE Proceedings Vol. 6169:
Smart Structures and Materials 2006: Damping and Isolation
William W. Clark; Mehdi Ahmadian; Arnold Lumsdaine, Editor(s)

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