2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 7: Yang Intl. Symp. / Multiscale Material Mechanics
| Editors: | Kongoli F, Aifantis E, Wang H, Zhu T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 190 pages |
| ISBN: | 978-1-987820-48-5 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Analysis of natural fiber reinforced composites considering moisture absorption
Zheng Zhong1;1TONGJI UNIVERSITY, Shanghai, China;
Type of Paper: Regular
Id Paper: 256
Topic: 1
Abstract:
The moisture absorption is the main drawback in natural fiber reinforced composites, causing remarkable degradations on such mechanical prosperities as elastic modulus and interface bonding. To quantify the relation between the water uptake and its effects on the mechanical properties, a non-linear constitutive model is proposed. We model the kinetic process under the framework of energy dissipation based on the nonequilibrium thermodynamics. The energy dissipation, corresponding to the water diffusion process is described by internal variables. And the mechanical degradations on the interface and the fiber are characterized by two degradation parameters. By comparison with the experimental data of sisal fiber reinforced composites, our model shows a good prediction for different fiber contents.