Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10628064 | Composites Part A: Applied Science and Manufacturing | 2005 | 6 Pages |
Abstract
A transient gas flow method was developed to determine the quality of fibrous preforms in resin transfer molding (RTM) prior to resin injection. The method aims at detecting defects resulting from preform misplacement in the mold, accidental inclusions, preform density variations, race tracking, shearing, etc. Unlike the previously developed method based on steady-state gas flow, the new method allows for the acquisition of continuous time-varying pressure data from multiple ports during a single test. The validity of the method was confirmed by one-dimensional flow experiments.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Sun K. Kim, Isaac M. Daniel,