Research Summary
Partially Impregnated Prepregs for Vacuum Bag Only Processing
Authors: Thomas A. Cender (Ph.D.ME.), Dr. Pavel Simacek, Dr. Suresh G. Advani
Out-of-Autoclave Processing Challenge

Open Pore Network


Theory

Experiment Data Reduction

Experimental Setup

Conclusions
• A methodology is devised for characterizing gas evacuation characteristic of OOA prepreg as a function of resin saturation
• Resin saturation effects the permeability in a range of two orders of magnitude
• The Klinkenberg effect can accelerate the gas evacuation process by a factor of 3
Acknowledgements
We would like to thank Steven Davis, Mehmet Omer, and Munetaka Kubota for their assistance in this research. Research was sponsored by the Office of Naval Research under Grant No. N00014-10-1-0971. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Office of Naval Research.