Composite loading test device for explosive blasting impact and shearing

Abstract

The invention discloses a composite loading test device for explosive blasting impact and shearing. The composite loading test device comprises a loading source assembly, a shearing implementation assembly and a witness plate, wherein the loading source assembly comprises a detonator, a driving explosive, a buffer layer and a driving steel plate; the driving explosive, the buffer layer and the driving steel plate are circular sheets; the detonator is fixed on the circular driving explosive; the shearing implementation assembly comprises a main explosive, a limiting body and a base; the driving explosive, the buffer layer, the driving steel plate and the main explosive are sequentially arranged in the limiting body from top to bottom; the inner diameter of the base is smaller than the section diameter of the main explosive; the limiting body is arranged on the base; the witness plate is a cylinder; the base is fixed on the witness plate. The composite loading test device has an integrated impact and shearing action, has high strain rate, is used for performing an explosive blasting test caused by the impact and shearing action, and can meet requirements on research and investigation of influence of the integrated impact and shearing action on explosive loading and ignition.

Description

technical field [0001] The invention belongs to the field of explosive performance testing, and in particular relates to an explosive explosion impact composite loading test device. Background technique [0002] The explosive charge used for filling the warhead of the penetrating weapon requires that no unexpected reaction occurs during the penetrating process of the weapon, so as to ensure its stable performance, so as to meet the actual combat requirements of this type of weapon application. The impact safety performance has always been an important content in the research of this type of ammunition, especially the safety of explosive charges under the condition of external high-speed impact has become a focus of attention. It is of great significance to understand and study the influencing factors and response mechanism of explosive charge reaction under such application environment conditions. [0003] According to the actual application of weapons and test loading cond...

AI Technical Summary

Problems solved by technology

The shortcoming of the device is that it can only carry out shear loading, and the loading rate is small and the strain rate is low, which cannot reflect the strong impact stress generated at the moment of contact between the ammunition and the penetrating target under high-speed impact conditions.

[0006] The above-mentioned test loading devices and methods have a single mode of action, and cannot evaluate the complex and harsh force conditions of the explosive charge during the penetration process. At present, there is no high-strain rate loading test device with both impact and shear combined effects

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