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TECHNICAL PAPERS

High Pressure Generation Using Underwater Explosion of a Spiral Explosive in a Conical Vessel

[+] Author and Article Information
Toru Hamada

Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto City, Kumamoto 860-8555, Japan

Shigeru Itoh

Shock Wave and Condensed Matter Research Center, Kumamoto University, 2-39-1 Kurokami, Kumamoto City, Kumamoto 860-8555, Japan

Kenji Murata, Yukio Kato

NOF Co., Aichi Branch, Taketoyo, Aichi 470-2379, Japan

J. Pressure Vessel Technol 126(2), 258-263 (May 05, 2004) (6 pages) doi:10.1115/1.1687385 History: Received May 27, 2003; Revised June 22, 2003; Online May 05, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic illustration of calculation model for the spiral configuration
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Spiral configuration obtained by Eq. (9)
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Schematic illustration of the optical observation device used in the streak photography
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Streak photograph of underwater shock wave generated by detonation of SEP
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Comparison between streak photograph and function approximation
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Schematic illustration of the optical observation device for the spiral configuration used in the framing photography
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Comparison between framing photograph and calculated propagational position of under water shock wave
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Details of manganinn gauge
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Schematic illustration of the manganin gage. (Upper plate was used as the stress medium, and lower plate was used to protect and fix the gauge.)
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Schematic of the power source circuit for the manganin gauge method
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Differential amplification circuit used to record the resistance of manganin gauge
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The typical output of experiment in this manganin gauge method
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Schematic illustration of the pressure measurement device used manganin gauge
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The pressure history of output data obtained by manganin gauge in the case of the cone angle 120 deg
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The pressure history in the case of the cone angle 80 deg and 120 deg
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Impedance match of SEP and water

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