Equivalent loading experimental device capable of realizing shock compression of material underwater explosion shock waves

Abstract

The invention discloses an equivalent loading experimental device capable of realizing the shock compression of material underwater explosion shock waves. The equivalent loading experimental device mainly comprises an emission system, a speed measuring system, a water tank system, a hydraulic system and a measurement system; the emission system and the water tank system are arranged horizontally and linearly; the port of the emission pipe of the emission system is opposite to the port of the head of a high-pressure water tank; the speed measuring system is installed at the port of the emission pipe; and the main body part of the water tank system includes two water tanks and a transmission rod. A bullet is utilized to impact the water tank system; and the kinetic energy of the bullet can be converted into the energy of shock waves in the water tank. According to the equivalent loading experimental device of the invention, explosion shock waves under underwater environments of different depths can be obtained under a condition that no explosives are used; and dynamic shock compression mechanical behavior analysis of a plurality of materials under underwater explosion shock waves can be completed. The equivalent loading experimental device has advantages of high repeatability, high safety, low experimental cost, simple operation and so on.

Description

technical field [0001] The invention relates to an explosion and shock dynamics experiment device, in particular to an experiment device for generating an equivalent underwater explosion shock wave load by impact and testing the dynamic impact compression mechanical properties of materials under the action. Background technique [0002] Marine engineering structures usually work in harsh environments such as seawater corrosion, high and low temperature, and transient impact loads, and the main impact loads they bear include collisions, three-dimensional fluid loads, etc. In addition, the ship structure also faces the threat of weapon strikes, and must deal with explosive loads from the surface and underwater. At present, there are few experimental studies on the action of underwater explosion shock waves on marine structures. Instead, finite element simulation software such as ABAQUS, LS-DYNA, and AUTODYN are mainly used for simulation research. Due to the lack of necessary ...

AI Technical Summary

Problems solved by technology

The existing experimental methods focus on pool explosion experiments and equivalent target plate experiments. Due to the shortcomings of traditional explosion experiments such as poor controllability, low efficiency, high cost, high risk factor, and high requirements for the experimental environment, a material water The equivalent loading experimental device and its testing method for the shock compression of the lower explosion shock wave will have important engineering significance

[0003] At present, there are relatively few researches on the equivalent loading experimental devices of underwater explosions at home and abroad.

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