Device and method for testing energy release of active materials under different atmospheres

Abstract

The invention discloses a device and a testing method for energy release of active materials under different atmospheres, aiming to solve the problem of inaccurate testing of energy release of active materials at present. The test device consists of a main tank, 2 supporting walls, 2 supporting bases, an observation window, and a fixing screw; the main tank is sandwiched between the 2 supporting walls; the observation window is on the front of the main tank, and the fixing screw passes through 2 The supporting wall and the right supporting wall, the main tank, two supporting walls, and the observation window form a closed space; the test method is to install the sample made of active materials, the pressure sensor, the camera and the Hopkinson pressure bar to the test device , test the energy release of the active material, and obtain the change law of pressure and strain; draw a curve with the input impulse as the independent variable, and the impact energy release or reaction degree as the dependent variable, and obtain the impact energy release of the active material according to the slope and intercept of the curve. The energy release of active materials can be accurately measured by adopting the invention.

Description

technical field [0001] The invention belongs to a test device, in particular to a test device for testing energy release of active materials in different atmospheres by applying different loads through a Hopkinson pressure bar. Background technique [0002] Active material is a special kind of energetic material, which is inert at normal temperature and pressure, and has a certain structural strength, and can be made into fragments and other components; under strong impact, it can react violently and release a large amount of chemical energy. energy, and the energy release is different in anoxic and oxygen-enriched environments. Active materials can be made into missile fragments or explosion protection materials, and have important applications in military and engineering. Compared with inert materials, active materials have the greatest advantage in impact energy release. Therefore, it is of great value for the evaluation and application of active materials to determine ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an active material applied to a separate Hopkinson compression bar platform for the problems of inaccurate testing of energy release of active materials with low strength by direct ballistic experiments, difficulties in carrying out experiments, and difficulty in controlling the loading size. Material release energy testing device and method, reducing the difficulty of carrying out active material energy release testing and improving test accuracy

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