Dynamic Response Of A Detonation Vessel
Author(s)
B. Simoens, M.H. Lefebvre & F. Minami
Abstract
Detonation vessels are used for a wide range of applications. They are generally
designed for a specific use and are built to withstand the impulse induced by
the detonation of a given maximum mass of explosive. In general however, the
characteristics of the explosive charge however are not specified. It is assumed
to be spherical and is usually expressed as a TNT-equivalent mass of explosive.
Extensive testing of various explosive charges in a small scaled cylindrical vessel
has led to several important recommendations for a better (more rational) use of
impulsively loaded vessels. The shape of the explosive charge has been shown to
be crucial in the loading on the vessel wall: peak deformations can vary by a factor
of two with varying charge shape. A \“worst case” charge shape can be found
for every vessel. Experiments have shown as well the large benefit of splitting
one large charge into two half charges separated by a certain distance: the vessel
response is significantly reduced in the latter case. Changing the charge location in
a cylindrical vessel for different shots also allows to extend the vessel lifetime by
spreading the location of largest deformation over a large area of the vessel wall
instead of concentrating the impulse on the same location for every shot. Finally
no major influence of the location of the initiation of the charge has been observed.
Keywords: detonation vessel, impulsive loading, vessel response, cylindrical
charge, explosive emulsion, initiation location, split charges.
Keywords
detonation vessel, impulsive loading, vessel response, cylindrical
charge, explosive emulsion, initiation location, split charges
Related Book
Other papers in this volume
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