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Proceedings Paper

Determination of shaped-jet characteristics by double orthogonal synchro streak technique and double x-ray technique
Author(s): Robert Tosello; Mohamed Mehaddi; Henry Marrot
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Paper Abstract

This paper presents a method that allows very accurate measurements for a full characterization of shaped charge jets. A double visualization of the jets is achieved by means of both a modified high speed camera CORDIN in Double Orthogonal Synchro Streak Technique (DOSST) configuration and a classical Double XRays Technique (DXRT). The interests of this method are twofold: Firstly, the DOSST and the DXRT complement each other. Because of the high precision of the system, DOSST allows to obtain very accurate space-time data. But some fragments can be hidden either at the jet tip by shock waves or at the rear of the jet by some detonation products. With DXRT, all fragments are visible on the X-ray photograph. Secondly, the validity of the results can be controlled by comparing, on the same experiment, the X-ray data with the camera data. For each fragment, the raw data (space-time position, length and area) is semiautomatically determined by an image processing system developed at the Centre Technique des Systemes Navals (CTSN). Then, all the usual characteristics of the jet are calculated using appropriate algorithms. The experimental methodology, the data processing and the results obtained for various shaped charges are detailed. Values obtained by the high speed camera and the X-ray flashes are compared. Finally, comparisons between the calculated values and the experimental observations, like impact locations on the witness plates, are also made.

Paper Details

Date Published: 30 May 1995
PDF: 8 pages
Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); doi: 10.1117/12.209564
Show Author Affiliations
Robert Tosello, Ctr. Technique des Systemes Navals (France)
Mohamed Mehaddi, Ctr. Technique des Systemes Navals (France)
Henry Marrot, Ctr. Technique des Systemes Navals (France)

Published in SPIE Proceedings Vol. 2513:
21st International Congress on: High-Speed Photography and Photonics
Ung Kim; Joon-Sung Chang; Seung-Han Park, Editor(s)

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