Center for Composite Materials - University of Delaware

Research Summary

Multiscale Flow Modeling to Predict Tow Filling and Void Transport

Authors: Michael Yeager, Pavel Simacek, Suresh G. Advani


Multiscale Resin Flow Modeling

Prediction of Capillary Pressure

Influence of Capillary Pressure on Tow Filling

Void Transport


• The influence of capillary pressure on tow filling increases with a decreasing applied pressure
• When bubbles are forced to convect through fiber tows, it does not significantly influence t* if the bubble splits into multiple parts or stays connected
• Tow aspect ratio and fiber volume fraction have a large effect on the likelihood of bubbles escaping during composite processing


Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-12-2-0022. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.

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