Elastic properties of aligned carbon nanotube polymer nanocomposites with controlled morphology

D. Handlin, R. Guzmán De Villoria, S. H. Chan, K. Takahashi, H. Cebeci, M. Williams, E. M. Parsons, S. Socrate, B. L. Wardle

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The theoretical elastic properties of aligned carbon nanotube polymer nanocomposites (A-PNCs) have been predicted by standard composite theory, however, a complete experimental characterization of their (presumed) transversally isotropic properties has not been presented to date. High volume fraction A-PNCs are fabricated by biaxial mechanical densification of the CNTs, followed by polymer infiltration via capillarity-assisted wetting using an aerospace-grade epoxy. Because of the dimensions of the samples (∼1mm 3), only bulk compression or nanomechanical tests have been attempted previously. Here, optical strain mapping is used in conjunction with simple mechanical loadings (here simple uniaxial dogbone specimens) in order to characterize the linear elastic constitutive relations of this material. Elastic stiffness is in agreement both with prior experimental nanoindentation measurements and finite element calculations that include the effects of waviness of the reinforcing CNT "fibers".

Original languageEnglish
Title of host publication53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781600869372
DOIs
Publication statusPublished - 2012
Event53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Honolulu, HI, United States
Duration: 23 Apr 201226 Apr 2012

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Conference

Conference53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/TerritoryUnited States
CityHonolulu, HI
Period23/04/1226/04/12

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