Measurement of thickness and elastic properties of electroactive polymer films using plate wave dispersion data

Yoseph Bar-Cohen; Shyh-Shiuh Lih; Anter El-Azab; Ajit K. Mal

doi:10.1117/12.259187

15 November 1996 Measurement of thickness and elastic properties of electroactive polymer films using plate wave dispersion data

Yoseph Bar-Cohen, Shyh-Shiuh Lih, Anter El-Azab, Ajit K. Mal

Author Affiliations +

Proceedings Volume 2948, Nondestructive Evaluation for Process Control in Manufacturing; (1996) https://doi.org/10.1117/12.259187
Event: Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1996, Scottsdale, AZ, United States

Abstract

In this paper, an ongoing investigation of plate wave dispersion measurement as a technique for indirect determination of the elastic properties and thickness of electroactive thin film polymers is described. Three polymer films were tested: a 1 mm thick s-PMMA film, and 80 micrometers and 230 micrometers thick polyethylene terephthalate films. The dispersion curves are measured, and a numerical algorithm is applied to recover the thickness and elastic constants of these films. Preliminary results show that the technique can be a viable gauging tool for electroactive thin film polymers.

Citation Download Citation

Yoseph Bar-Cohen, Shyh-Shiuh Lih, Anter El-Azab, and Ajit K. Mal "Measurement of thickness and elastic properties of electroactive polymer films using plate wave dispersion data", Proc. SPIE 2948, Nondestructive Evaluation for Process Control in Manufacturing, (15 November 1996); https://doi.org/10.1117/12.259187

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