Abstract
A method is presented for measuring the permeability of three-dimensional orthotropic fiber preforms using the inverse parameter estimation technique. The method is based on an optimization procedure that minimizes differences between computed and measured times of arrival of the flow front at various locations in the mold during resin transfer molding. The arrival time is computed by numerical simulation using the control volume finite element method. The validity of this method was examined experimentally. It was shown that the proposed method can be implemented in a straightforward manner and yields reliable results.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 421-429 |
| Number of pages | 9 |
| Journal | Composites Part A: Applied Science and Manufacturing |
| Volume | 34 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2003 |
Funding
The work described in this paper was conducted in the Center for Intelligent Processing of Composites of Northwestern University sponsored by the Office of Naval Research (ONR). The authors are grateful to Dr Ignacio Perez of ONR for his encouragement and cooperation.
Keywords
- Inverse parameter estimation
- Resin transfer molding
- Three-dimensional permeability
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials