Experiments on the focusing and use of acoustic energy to accelerate polymer healing

Alexander J. Cushman; Brian C. Fehrman; Shaun D. Gruenig; Umesh A. Korde

doi:10.1117/12.914756

27 March 2012 Experiments on the focusing and use of acoustic energy to accelerate polymer healing

Alexander J. Cushman, Brian C. Fehrman, Shaun D. Gruenig, Umesh A. Korde

Proceedings Volume 8341, Active and Passive Smart Structures and Integrated Systems 2012; 83410J (2012) https://doi.org/10.1117/12.914756
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

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.

Citation Download Citation

Alexander J. Cushman, Brian C. Fehrman, Shaun D. Gruenig, and Umesh A. Korde "Experiments on the focusing and use of acoustic energy to accelerate polymer healing", Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83410J (27 March 2012); https://doi.org/10.1117/12.914756

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