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Proceedings Paper

Shock Compression Of Polymethylmethacrylate From 20 To 80 Kilobars
Author(s): T. Yamada; K. Kani; A. Morita
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Paper Abstract

The Hugoniot of transparent Polymethylmethacrylate (PMMA)1) has been obtained in the pressure range from 20 to 80 kilobars. The Hugoniot has been deduced by measuring the shock velocity and the shock-induced free surface velocity of the PMMA plate. The present paper describes experimental techniques in which copper flyer plates have been accelerated by a powder gun for shock compression of the PMMA plates and a high speed streak camera has been employed to observe motions of a shock front and a free surface. The present techniques have proved to be usable for measuring the Hugoniots of transparent materials with relatively high accuracy. A small discontinuity appeared in the shock velocity-particle velocity Hugoniot obtained. This might suggest the existence of a phase change.

Paper Details

Date Published: 27 July 1979
PDF: 4 pages
Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); doi: 10.1117/12.957687
Show Author Affiliations
T. Yamada, Kyoto University (Japan)
K. Kani, Kyoto University (Japan)
A. Morita, Kyoto University (Japan)

Published in SPIE Proceedings Vol. 0189:
13th Intl Congress on High Speed Photography and Photonics
Shin-Ichi Hyodo, Editor(s)

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