METHOD FOR TESTING AXISYMMETRIC HIGH-EXPLOSIVE FRAGMENTATION MUNITIONS WITH NON-AXISYMMETRIC FRAGMENTATION FIELD Russian patent published in 2023 - IPC F42B35/00 

FIELD: ammunition testing.

SUBSTANCE: testing of axisymmetric fragmentation munitions with a non-axisymmetric field of fragmentation. The method involves detonating ammunition installed in the center of a profiled target wall so that its longitudinal axis coincides with the longitudinal axis of the profiled wall; the profiled target wall is made circular, marked into zones corresponding to the directions of scattering of fragments in the adopted coordinate system; hits are recorded, captured, and the number of fragments falling into each zone is counted, size and area of the holes are measured, signals from electret sensors located in the corresponding zones of the target wall and equal in size are registered, recorded, and processed, assessment of the quantitative characteristics of the fragmentation field by mass, speed, shape, and size of the fragments is performed, a non-axisymmetric dispersion field of fragments is formed by non-central initiation of ammunition. The quantitative characteristics of the fragmentation field in terms of masses, velocities, shapes and sizes of fragments are determined for all the possible combinations of nodes of non-central initiation of ammunition. In this case, an additional coordinate system is introduced, the longitudinal axis of which passes through the initiated base non-central node and the longitudinal axis of the ammunition parallel to the surface of the earth, and the transverse axis of the coordinate system passes through the longitudinal axis of the ammunition and is perpendicular to the longitudinal axis of the input coordinate system. On the earth surface, including along the axes of the introduced coordinate system at a distance exceeding 20 equivalent radii of the explosive charge, lines of pressure sensors are installed connected to the autonomous pressure meters. The values of excess pressure in the shock wave are recorded by the lines of pressure sensors and autonomous pressure meters along distances and directions, and the obtained values of the shock wave excess pressure are transmitted to a remote computer. On the remote computer, the values of excess pressure at the front and the shock wave impulse are determined by distances and directions, the shock wave field created in the environment by the tested high-explosive fragmentation ammunition with a non-axisymmetric field of scattering fragments is recorded.

EFFECT: increase in information content of the method through taking into account the high-explosive action of axisymmetric high-explosive fragmentation ammunition with a non-axisymmetric fragment dispersion field.

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