Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6707039 | Composite Structures | 2015 | 10 Pages |
Abstract
The temperature distribution in a representative volume element of three-dimensional and four-directional braided composites is studied with appropriate boundary conditions by the finite element method (FEM) to predict the effective thermal conductivity of the composite. Models with elliptical, circular and hexagonal cross-section of braiding yarns are considered. The model is validated by experiments based on hot disk thermal constant analyzer. The influences of fiber volume fraction Vf, and interior braiding angle γ, on heat transfer of the composite are studied with Vf equal to 0.40, 0.50 and 0.58, and γ from 15° to 50°. The results show that for the composite studied increasing fiber volume fraction results in higher thermal conductivity in both axial and transverse direction, while a larger interior braiding angle leads to higher transverse thermal conductivities but lower axial ones.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Jian-Jun Gou, Hu Zhang, Yan-Jun Dai, Shuguang Li, Wen-Quan Tao,