Center for Composite Materials - University of Delaware
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

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.

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