Explosive impact damage test device

A damage test and explosive technology, applied in the field of explosive performance parameter experiments, can solve problems such as unfavorable data comparison, difficulty in ensuring test accuracy, and lack of consensus on calculation methods, and achieve the effect of guaranteed test accuracy.

Inactive Publication Date: 2019-08-02
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 to improve the accuracy of experimental results. More Scientific Characterization of Impact Damage of Explosives

Method used

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Examples

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Embodiment 1

[0026] In this embodiment, an explosive impact damage test device is designed to measure the damage degree of 9g of explosive after impacting at a speed of 150m / s.

[0027]An explosive impact damage test device and method, the device includes a guide rail 1, a slider 2, a housing 3, an explosive 4, a turning tool 5, a speed measuring target 6, a recovery box 7, a target plate 8 and a combustion chamber 9, the The components of the explosive impact damage test device are installed sequentially along the same axis. The guide rail 1 is made of conductive metal, and the cross section of the guide rail 1 is a circular ring with a notch. -2 structure, the track A1-1 and the track B1-2 are overall long rods of equal section, the cross-section of the track A1-1 and the track B1-2 is fan-shaped at an angle of 180°, the track A1-1 and the The track B1-2 is installed symmetrically, and a cylindrical cavity is formed between the track A1-1 and the track B1-2, which is used to place the sl...

Embodiment 2

[0037] In this embodiment, an explosive impact damage test device is designed to measure the degree of damage of 100 g of explosives impacted at a speed of 150 m / s.

[0038] An explosive impact damage test device and method, the device includes a guide rail 1, a slider 2, a housing 3, an explosive 4, a turning tool 5, a speed measuring target 6, a recovery box 7, a target plate 8 and a combustion chamber 9, the The components of the explosive impact damage test device are installed sequentially along the same axis. The guide rail 1 is made of conductive metal, and the cross section of the guide rail 1 is a circular ring with a notch. -2 structure, the track A1-1 and the track B1-2 are overall long rods of equal section, the cross-section of the track A1-1 and the track B1-2 is fan-shaped at an angle of 180°, the track A1-1 and the The track B1-2 is installed symmetrically, and a cylindrical cavity is formed between the track A1-1 and the track B1-2, which is used to place the ...

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Abstract

The application discloses an explosive impact damage test device. According to the basic principle, the explosive is accelerated by using a gas gun or an electromagnetic gun and the muzzle velocity ofthe explosive is measured and recorded; the explosive impacts on a rigid target plate at a high speed; the impacted explosive is collected and then closed ignition combustion testing is carried out on the explosive; and the explosive impact damage degree is represented by using a pressure changing rate peak generated by explosive combustion. The device has advantages of quantitative and accuratetest results; most of explosive impact damage performance study requirements can be met; and the technical guarantee can be provided for the novel explosive research and explosive safety evaluation.

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, which is mainly used for evaluating 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 temperature and ...

Claims

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Application Information

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IPC IPC(8): G01N19/00
CPCG01N19/00
Inventor李鸿宾杨建任松涛姜夕博高赞金朋刚
OwnerXIAN MODERN CHEM RES INST