Explosive stress testing device based on multiple pulse tests

Abstract

The invention discloses an explosive stress testing device based on multiple pulse tests. An upper pressing plate in the device is a circular truncated cone; and a step-shaped through hole is formed in the center of the upper pressing plate. A table-shaped impact column, a manganin sensor, a data transmission line and a lower bottom plate are sequentially installed along the step-shaped through hole of the upper pressing plate from top to bottom. The table-shaped impact column is a step-shaped cylinder; the small-diameter end of the table-shaped impact column is connected with a sleeve and a sample in a test bomb; and the large-diameter end of the table-shaped impact column is connected with a large-diameter through hole of the upper pressing plate. One end of the manganin sensor overlapsthe circle center of the lower bottom plate. The lower bottom plate is a circular truncated cone; grooves are formed in the end face, making contact with the upper pressing plate, of the lower bottomplate; and the lower bottom plate is connected with the upper pressing plate through a table-shaped through hole. According to the invention, experimental devices and test device components for multiple pulse tests are reduced; the positions of the test bomb and the test device are fixed; a phenomenon that a connecting wire is damaged in advance or the test component is separated from a sensor andthus data cannot be obtained due to vibration and other reasons in the impact process of the test component is avoided; and the test success rate and the data accuracy are improved.

Description

technical field [0001] The invention belongs to the field of testing performance parameters of explosive charges, and relates to an explosive charge stress test device, in particular to an explosive stress test device suitable for multiple pulse tests. Background technique [0002] When the penetrating warhead penetrates the multi-layer target, the internal explosive charge is subjected to multiple pulse loads. Under the periodic action of multiple pulse loads, the explosive charge may appear cracks, breakage, etc., and even ignite. Multiple pulse tests can study and evaluate the safety of explosive charges under multiple pulse loads. [0003] At present, in the field of explosive safety evaluation in China, a single pulse is mostly used, and two or even multiple pulse tests are rarely used. Qu Kepeng et al. invented a patent for "explosive charge continuous multi-pulse load loading experimental device" (2018 In April, ZL2015 1 0697886.4), the patent can realize two pulses,...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies and defects of the prior art, the invention provides a kind of explosive stress testing device based on multiple pulse tests, by reducing the experimental device and test device parts in the multiple pulse test, and fixing the position of the test bomb and the test device , Eliminate the detachment of the impact column from the sensor during the impact process, avoid the phenomenon that the test component damages the connection line in advance due to vibration and other reasons during the impact process, or the phenomenon that the test component is separated from the sensor and cannot obtain data, improving the test success rate and data accuracy

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