A phase-field based finite element method for modeling graphene flake reinforced composites

被引：4

作者：

Bian, Pei-Liang ^{[1
]}

Qing, Hai ^{[2
]}

机构：

[1] Hohai Univ, Coll Mech & Mat, Nanjing, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Finite element; nano composite; phase-field method; graphene; representative volume element; REPRESENTATIVE VOLUME ELEMENTS; MECHANICAL-PROPERTIES; HETEROGENEOUS MATERIALS; TOPOLOGY OPTIMIZATION; PROGRESSIVE FAILURE; ELASTIC PROPERTIES; BRITTLE-FRACTURE; NANOCOMPOSITES; MATRIX; PROPAGATION;

D O I：

10.1080/15376494.2022.2048146

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new phase-field based method is proposed to represent the graphene reinforced composites and investigate the mechanical properties of the nanocomposites. The discrete graphene flakes are now represented with a continuous phase-field theta(x). Considering the extremely large aspect ratio of the graphene, both isotropic and anisotropic constitutions are used for the material at the transition region between the graphene and epoxy matrix. The present model is validated through comparison with shell based finite element model for the anisotropic constitution. The present model offers a simple way to model the thin flakes with a large aspect ratio reinforced composites in FEM software.

引用

页码：1897 / 1912

页数：16

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