Pressure vessel made by free forming using underwater explosion

H Iyama, H Maehara, Y Hidaka, S Itoh

Abstract


Explosive forming is one particular forming technique, in which, mostcommonly, water is used as the pressure transmission medium. In recentyears, we have done the development of the method which obtains anecessary form of the metal by the control of underwater shock wave actson the metal plate, without a metal die. On the other hand, the pressurevessel is required in various fields, but we think that the free forming usingthe underwater shock wave is advantageous in the production of pressurevessel of a simple spherical, ellipse, parabola shape. In this paper, we willintroduce an experiment and several numerical simulations that we carriedout for this technical development.

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References


Iyama, H., Raghukandan, K., Nagano, S. and Itoh, S., “The Effect of Pressure Vessel in Explosive Forming”, PVP Vol. 460, 2003, pp. 307–312.

Hinata, T., Iyama, H. and Itoh, S., “High Strain Rate Formation of Al Alloy Plate for Car Body”, PVP Vol. 485-2, 2004, pp. 159–164.

Wilkins, M. L., 1964, “Calculation of Elastic-Plastic Flow”, in Methods in Computational Physics (Eds. Alder, B., Fernbach, S. and Rotenberg, M.), Vol. 3, pp. 211–263, Academic Press, NY.

McQueen, G., Marsh , S. P., Taylor, J. W., Fritz, J. N., and Carter, W. J., 1970, “The Equation of State of Solids from Shock Wave Studies”, in High-Velocity-Impact Phenomena (Ed. Kinslow, R.), p. 230, Academic Press, NY.

Lee, E., Finger, M., and Collins, W., 1973, “JWL Equation of State Coefficients for High Explosives”, Lawrence Livermore National Laboratory report UCID-16189, Livermore, CA.




DOI: http://dx.doi.org/10.1260/1750-9548.2.4.345

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