An extended Mori-Tanaka micromechanics model for wavy CNT nanocomposites with interface damage

In this paper, an extended Mori-Tanaka (MT) model was proposed to evaluate effective stiffnesses of wavy carbon nanotube (CNT) nanocomposites with interface damage. The proposed model combined MT theory with linear spring model and wavy CNT model. We validated the proposed model by comparing analyti...

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Bibliographic Details
Published in:Mechanics of advanced materials and structures 2021-02, Vol.28 (3), p.295-307
Main Authors: Zhu, Feiyan, Park, Chanwook, Jin Yun, Gun
Format: Article
Language:English
Subjects:
Carbon nanotubes
CNT
Damage
Finite element method
interface damage
Mathematical analysis
Mathematical models
Micromechanics
Molecular dynamics
Mori-Tanaka
nanocomposite
Nanocomposites
Strain concentration
Tensors
Three dimensional models
Waviness
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Summary:In this paper, an extended Mori-Tanaka (MT) model was proposed to evaluate effective stiffnesses of wavy carbon nanotube (CNT) nanocomposites with interface damage. The proposed model combined MT theory with linear spring model and wavy CNT model. We validated the proposed model by comparing analytically and numerically derived dilute strain concentration tensors for the extended MT and 3D finite element models, respectively. Interfacial compliances attributed to nonbonded interactions were estimated by the van der Waals and Coulomb potentials in a molecular dynamics (MD) simulation model. We demonstrated influences of the volume fraction, waviness, and interfacial damage on the effective properties of CNT nanocomposites.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2018.1562135