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Proceedings Paper

Application of ultra-high-speed optical observations and high-speed x-ray radiography measurements to the study of explosively driven copper tube expansion
Author(s): C. Voltz; J. M. Lagrange; G. Besnard; B. Etchessahar
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Paper Abstract

The purpose of this experiment is to study the behavior of expanding copper cylinder under explosive loading. The apparatus is designed to submit the target to high strain, high stain rate in quasi-plane deformation constraints. Using high-speed cinematography we evaluate the expansion characteristics and observe plastic instability and striction phenomena. Stereoscopic observation is used to give us the possibility to reconstruct the 3D shape and to access to free moving and strain fields. In order to measure the residual thickness and characterize striction patterns, we employ a flash X-Ray imaging diagnostic. Experimental results are presented and compared with hydrocode calculations.

Paper Details

Date Published: 10 February 2009
PDF: 10 pages
Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261M (10 February 2009); doi: 10.1117/12.822052
Show Author Affiliations
C. Voltz, CEA, DAM (France)
J. M. Lagrange, CEA, DAM, DIF (France)
G. Besnard, CEA, DAM, DIF (France)
B. Etchessahar, CEA, DAM, DIF (France)

Published in SPIE Proceedings Vol. 7126:
28th International Congress on High-Speed Imaging and Photonics
Harald Kleine; Martha Patricia Butron Guillen, Editor(s)

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