Homogenization Analysis of 3-D Composites using Finite Thickness Unit-Cell Model

Abstract

The complexity of 3-D composites microstructure leads to the difficulty on the analysis. However, the microstructure can be idealized such that possesses a periodic pattern, which enables composites structure to be effectively and efficiently analyzed by using asymptotic expansion homogenization (AEH) method involving representative unit-cell (UC) model. In AEH method, analysis of UC model uses a set of periodic boundary condition (BC) which is usually assumed to be periodic in three-dimension. Nevertheless, composite laminates, especially in aerospace application, are very thin. It should not be considered infinitely in the thickness direction. This paper discusses an improvement in asymptotic analysis of periodic structure by modeling the finite thickness unit-cell model and relieving periodic boundary condition at the top and bottom of unit-cell surfaces to consider the effect of finite thickness in 3-D composites.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

3-D composites; Asymptotic expansion homogenization; Finite thickness unit-cell model

International Standard Book Number (ISBN)

978-000000000-2

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 European Society of Composite Materials (ESCM), All rights reserved.

Publication Date

01 Jan 2014

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