Micromechanics Model for Wavy CNT Nanocomposites with Weakened Interface

摘要

This study presents an efficient approach for deriving the modified Eshelby tensorfor wavy CNT nanocomposites with weakened interface to be used in the Mori-Tanakamodel. Waviness and interfacial damage between matrix and CNT fillers are two mainfeatures that influence elastic stiffnesses of CNT nanocomposites. However, both haveyet been taken into account at the same time for micromechanics model. Using theproposed model, we investigated influences of the waviness, damage level, volumefraction, interfacial damage and orientation on the effective stiffness of both 3Drandomly oriented and aligned CNT nanocomposites. Increases of the volume fractionshowed positive reinforcing effect while the waviness and interfacial damage decreasesthe effective stiffness. The proposed model is expected to provide realistic effectiveelastic stiffness of CNT nanocomposites.