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Multiscale modeling of thermomechanical behaviour of three-phase nanocomposite

2016/08/20 by S. I. Kundalwal, Kundalwal, S. I., S. A. Meguid +1
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Composite Material Mechanics #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Nanotechnology research and applications #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.1608.05765

arxiv created 2016/08/20 · openalex publication_date 2016/08/20 · arxiv updated 2016/08/23 · openalex created_date 2016/09/16 · openalex updated_date 2026/07/28

Abstract

In this work, we developed an improved shear lag model to investigate the load transfer characteristics of three-phase nanocomposite which is reinforced with microscale fibers augmented with carbon nanotubes on their circumferential surfaces. The shear lag model accounts for (i) radial and axial deformations of different transversely isotropic constituents, (ii) thermomechanical loads on the representative volume element (RVE), and (iii) staggering effect of adjacent RVEs. The results from the current newly developed shear lag model are validated with the finite element simulations and found to be in good agreement. Our study reveals that the reduction in the maximum value of the axial stress in the fiber and the interfacial shear stress along its length become more pronounced in the presence of applied thermomechanical loads on the staggered RVEs. The existence of shear tractions along the RVE length plays a significant role in the load transfer characteristics and cannot be ignored.

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