Center for Composite Materials - University of Delaware

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


Experiment Data Reduction

Experimental Setup


• 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


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.

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