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

FY Zhu and C Park and GJ Yun, MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 28, 295-307 (2021).

DOI: 10.1080/15376494.2018.1562135

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.

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