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Proceedings Paper

Experiments on the focusing and use of acoustic energy to accelerate polymer healing
Author(s): Alexander J. Cushman; Brian C. Fehrman; Shaun D. Gruenig; Umesh A. Korde
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Paper Abstract

In this paper, we cover our studies on accelerating the molding process of a polymer by applying acoustic stress-wave time reversal. Tests carried out on an epoxy polymer mixed with a curing agent have shown evidence that the introduction of unfocused acoustic energy during the molding process will accelerate that process. The effects of focusing acoustic energy at a mold discontinuity while curing are explored. We also detail our investigations on focusing acoustic energy at a crack location by iteratively applying time reversal. Multiple types of media were tested.

Paper Details

Date Published: 27 March 2012
PDF: 10 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83410J (27 March 2012); doi: 10.1117/12.914756
Show Author Affiliations
Alexander J. Cushman, South Dakota School of Mines and Technology (United States)
Brian C. Fehrman, South Dakota School of Mines and Technology (United States)
Shaun D. Gruenig, South Dakota School of Mines and Technology (United States)
Umesh A. Korde, South Dakota School of Mines and Technology (United States)


Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)

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