Simultaneous initiation over large areas of a spray-deposited explosive

Hoese, F. O.; Langner, Carl G.; Baker, W. E.

doi:10.1007/bf02325999

Cited by 10 publications

(2 citation statements)

References 5 publications

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“…To implement a method of shock-wave treatment with a plane front of a detonation wave, a method of point initiation was excluded; a method was required for initiating a corresponding very sensitive explosive to a light pulse by a flash of light [57]. Paper [58] used a thin coating of silver-acetylene-nitrate silver explosive covering a relatively large area (up to 70 cm 2 ). The total duration of the light pulse exposure was about 6 µs.…”

Section: Measurement Of the Lsec Explosion Pulsesmentioning

confidence: 99%

Profiled Detonation Waves in the Technologies of Explosion Treatment of Metals

Sobolev,

Skobenko,

Kononenko

et al. 2024

Metallofiz. Noveishie Tekhnol.

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A short review is represented concerning physicotechnical features of current technologies, plane-wave, converging cylindrical and spherical detonation waves used in physics and chemistry of high energy densities, physics of metals, materials science, machine building, and mining and metallurgical industry. The main drawbacks of existing technologies are shown, and attention is focused on the technical nature of the reasons limiting their application. Attention is paid to solving the problem of simultaneous initiation of detonation of the entire surface layer of a light-sensitive explosive, regardless of the shape of the surface. A physical and mathematical methodology for estimating shock-wave parameters of an explosive during initiation of detonation in it by explosion of the initiation layer of the charge of a lightsensitive explosive composite is proposed. Prospects of practical application of detonation (shock) waves of the specified profile formed by laser ignition of the surface of a light-sensitive explosive composite are discussed. Physicochemical potential of the system of laser initiation of detonation makes it possible to form any wave profiles and get pulses of the intensity from 0.1 to 1.0 kPa⋅s on the surfaces being more than 1 m 2 . Precision and safe system of laser initiation can be used during any types of blasting operations including the ones that cannot be implemented principally, while applying standard systems for initiating explosives and means of explosion.

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Section: Measurement Of the Lsec Explosion Pulsesmentioning

confidence: 99%

Profiled Detonation Waves in the Technologies of Explosion Treatment of Metals

Sobolev,

Skobenko,

Kononenko

et al. 2024

Metallofiz. Noveishie Tekhnol.

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“…The light-initiated high explosive (LIHE) facility, at this time, is used primarily to investigate the structural response of complex test items, such as re-entry bodies/vehicles to shock-producing events [2,3]. Tests at a LIHE facility are high-fidelity tests, meaning that the test loading is delivered in the proper time frame, and applied over the entire test surface at the same time [4]. During a hostile encounter-such as a nuclear weapon detonated in space near a re-entry vehicle-hot, warm, and cold X-rays are produced.…”

Section: Introductionmentioning

confidence: 99%

Study on Characteristics of the Light-Initiated High Explosive-Based Pulse Laser Initiation

Wang

Zhang

et al. 2022

Materials

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The silver acetylene silver nitrate loading technology of the light initiated high explosive, as one of important means to simulate the structural response of powerful pulsed X-ray, adopts the pulse laser initiation. It has advantages of improvement of practical control, heterogenous loading realization and simultaneous loading timeliness. In this paper, the physical and mathematical models of hot spot initiation and photochemical initiation of energetic materials under the action of laser are firstly established, and then the laser initiation mechanism of the light initiated high explosive is specifically analyzed, and the laser initiation experiment is conducted based on the optical adsorption property of the light initiated high explosive. From this study, the laser initiation thresholds of 193 nm, 266 nm, 532 nm, 1064 nm wavelengths are given, and they are 5.07 mJ/mm2, 6.77 mJ/mm2, 7.21 mJ/mm2 and 10.61 mJ/mm2, respectively, and the complete detonation process is verified by detonation velocity. This work technically supports the study of pulse laser initiation process, mechanism and explosion loading rule as well as the loading technology of the light initiated high explosive to simulate the structural response of X ray.

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Initiation of a plane detonation wave by an exploding foil

Fot¹

1970

Strength Mater

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Simultaneous initiation over large areas of a spray-deposited explosive

Cited by 10 publications

References 5 publications

Profiled Detonation Waves in the Technologies of Explosion Treatment of Metals

Profiled Detonation Waves in the Technologies of Explosion Treatment of Metals

Study on Characteristics of the Light-Initiated High Explosive-Based Pulse Laser Initiation

Initiation of a plane detonation wave by an exploding foil

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