Nanoparticles Surface Energy Effect on Mechanical Properties and Microscopic Deformation of 3d Heterogeneous Nanostructures

Abstract

Nanoparticle-contained graphene foam material has attracted many practical applications in recent years, which require an in-depth comprehension of the basic mechanics of these heterogenous materials. In this paper, the effect of nanoparticles surface energy on the mechanical properties of nanoparticle-filled graphene foam under uniaxial tension and compression is systematically studied by the coarse-grained molecular dynamics simulation method. The mechanical strength of these nanoparticle-filled graphene foam is directly influenced by tuning the nanoparticles surface energy. The varying peeling-off behaviors of graphene sheets influenced by the surface energy of nanoparticles are observed. The stress distribution under uniaxial compression and tension at different nanoparticles surface energy is also studied. The mechanical behavior of nanoparticle-filled graphene foam is directly dependent on nanoparticles surface energy. The results should be helpful not only to understand the micro mechanism of such nanomaterials, but also to the design of advanced composites and devices based on porous materials mixed with particles.

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Mechanical and Aerospace Engineering

Keywords and Phrases

coarse-grained molecular dynamics; mechanical property; micro deformation mechanism; Nanoparticle filled graphene foam material; uniaxial tension

International Standard Serial Number (ISSN)

1793-7094; 1793-2920

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 World Scientific Publishing, All rights reserved.

Publication Date

30 Jun 2023

Link to Full Text

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