Explosive impact damage test device and method

Abstract

The application discloses an explosive impact damage test device and method. According to the basic principle, the explosive is accelerated by using bubbles or an electromagnetic gun; the firing speedof the explosive is measured and recorded; the explosive impacts on a rigid target plate at a high speed; and then enclosed ignition combustion testing is performed by collecting the impacted explosive a pressure change rate peak value generated by explosive combustion represents an explosive impact damage degree. According to the application, the explosive impact damage test device and method has advantages of good quantitative effect and high accuracy; the most of explosive impact damage performance study requirements can be met; and the technical guarantee is provided for studying the novel explosive and evaluating the explosive safety.

Description

technical field [0001] The application belongs to the technical field of explosive performance parameter experiments, and relates to an explosive impact damage test device and method, which are mainly used to evaluate the impact damage degree of explosives, and can provide technical support for the development of new explosives and the evaluation of explosive impact safety performance. Background technique [0002] Explosives may encounter impact stimuli of different intensities during their manufacture, transportation, storage, and destruction. If the impact is strong enough, explosives may ignite or even explode, which is one of the main safety hazards of explosives. In order to ensure The impact safety of explosives, researchers have made a lot of efforts, such as Qu Kepeng and others used the big drop hammer to study the impact safety of RDX-based PBX explosives under different stress rates, and Dai Xiaogan used the Stephen test to study the impact safety at room temperat...

AI Technical Summary

Problems solved by technology

However, there is no consensus on the calculation method of the damage degree, and the representation of the damage degree is still an unsolved problem. In summary, the existing methods have the following two problems:

[0003] (1) There is no unified understanding of the calculation method of damage degree, and the development of damage degree representation is diversified, which is not conducive to data comparison;

[0004] (2) Affected by the resolution of the test equipment itself, it is difficult to guarantee the test accuracy of the method of directly measuring the damage degree of explosives

[0005] The impact damage performance of explosives is one of the important topics in explosive safety research during evaluation. The current research methods are difficult to meet the test accuracy requirements of new explosive research. Therefore, there is an urgent need for an explosive impact damage test device and method to improve the accuracy of experimental results. Characterize the degree of impact damage of explosives more scientifically

Images