Target plate three-way confining pressure box body structure for projectile body deep penetration test

Abstract

The invention relates to a target plate three-way confining pressure box body structure for a projectile body deep penetration test. The target plate three-way confining pressure box body structure comprises a box body, an upper loading plate, a right loading plate, a rear loading plate, loading assemblies and uniform loading plates. The box body is of a cuboid box type structure with an opening in the upper part, the interior of the box body is used for containing a loaded target plate, a detachable cover plate is arranged on the upper portion of the interior of the box body, the loading assemblies are arranged on the lower portions of the right side wall and the rear side wall of the interior of the box body respectively, the uniform loading plates are arranged on the front side wall, the left side wall and the lower bottom wall of the interior of the box body respectively, and the upper loading plate, the right loading plate and the rear loading plate are rectangular plates providedwith slopes. According to the device, confining pressure loading can be carried out on the target plate in the three-dimensional direction, the inclined plate pressurization principle is adopted, itis guaranteed that the loading force is stable and reliable after loading through the self-locking function of a small-angle inclined plane, large loading pressure can be achieved through small driving force, and pressure simulation is carried out on concrete structures in a mountain and a deep-buried shelter at low cost.

Description

Technical field [0001] The invention belongs to projectile penetration test technology, and relates to a target plate confining pressure loading device, in particular to a target plate three-directional confining pressure box structure used for a projectile deep penetration test. Background technique [0002] The penetration test of deep-penetrating projectiles is an important method for weapon damage effectiveness evaluation and defense engineering protection effect detection, especially for the current research methods of deep underground solid targets. As the drilling depth increases, the stress conditions of the projectiles tend to be more complicated. Under the ground stress conditions, the material state is significantly different from the ground free conditions. Concrete, rock and other materials commonly used in engineering construction and target design have obvious hydrostatic pressure effects, and ground stress will have an important impact on the dynamic mechanical be...

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Problems solved by technology

[0004] Due to the difficulty of the three-dimensional confining pressure loading technology, there are not many such studies at home and abroad. At present, a small number of studies focus on the study of the dynamic mechanical properties of materials under confining pressure loading conditions using SHPB, while directly using confining pressure loading devices to The target plate is loaded with three-dimensional confining pressure for deep penetration test data is not available

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