How does an exploding foil initiator work

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August undefined, 2024

WebLaunch > Vehicle component > Exploding Foil Initiator Summary AN EXPLODING FOIL INITIATOR (EFI), ALSO KNOWN AS SLAPPER DETONATOR, IS USED TO PROVIDE … WebMay 7, 2024 · Little is known about the shape and curvature of exploding foil initiator (EFI) flyers, especially as they are forming within a finite barrel. This is because the typical barrel materials, such as stainless-steel, hinder observation of the flyer material during flight.

Detonator - Wikipedia

WebOct 24, 2016 · Exploding Foil Initiator (EFI) flyer layer velocities measured down the barrel of an EFI are presented. Flyer velocity was shown to be proportional to supply voltage and of … WebThe term “initiator” defines a fairly broad group of devices that are intended to trigger an energetic material, be it an explosive, propellant, or pyrotechnic. They are the first portion … phoenix arrowhead mall

Exploding Foil Initiator (EFI) Modes of Operation Determined Using …

WebAn exploding wire A projectile with sufficient kinetic energy The concept of the Flying Plate Detonator provides a detonation output from mechanical, electrical and non-explosive … WebThe initial shock wave is created by vaporizing a length of a thin wire by an electric discharge. A new development is a slapper detonator, which uses thin plates accelerated by an electrically exploded wire or foil to deliver … WebJan 1, 2024 · Under the action of a high pulse current, the explosive metal foil completes the transformation of solid, liquid, gas and plasma in a very short time, forming a high … phoenix army reserve units

Slapper detonator - Wikipedia

WebApr 30, 2024 · Analytical and numerical models, validated against published data, were developed to calculate the velocity and time of arrival duration (ToAD) of the flyer-plasma material at the top of the barrel of an exploding foil initiator (EFI), as commonly used in explosive devices. WebJun 1, 2024 · However, an exploding foil initiator (EFI), also known as a slapper detonator, simplifies the design of the explosive train by eliminating the mechanical assemblies … phoenix aromasWebSep 12, 2024 · The two requirements are achieved by using what we call an exploding foil initiator (EFI). And the EFI is the fundamental enabling technology for the high voltage, … ttec inc hiring process

"A narrowed section of the metal then explosively vaporizes when a current pulse passes through it, which shears the mylar foil and the plasma ball pushes it through the hole, accelerating it to very high speed. The impact then detonates the explosive pellet. Diagram of slapper and EBW detonators initiating detonation. See more A slapper detonator, also called exploding foil initiator (EFI), is a detonator developed by Lawrence Livermore National Laboratory, US Patent No. 4,788,913 (Filed 1971, Granted 1988). It is an improvement over the earlier See more • Nuclear weapon design • Triggering sequence See more • Elements of Fission Weapon Design, section 4.1.6.2.2.6 • Modelling and Simulation of Burst Phenomenon in Electrically Exploded Foils See more " - How does an exploding foil initiator work

How does an exploding foil initiator work

WebJul 14, 2013 · Increasing insensitivity demands on initiation trains in missile systems necessitates utilizing high voltage initiators. Exploding Foil Initiator (EFI), also known as Slapper Detonator, is the well–known high voltage detonator that can only be initiated under the action of large electrical currents. EFI is strictly immune to Electrostatic Discharge … WebNov 12, 2014 · Exploding foil initiators ... Simulation results for Nappert’s exploding foil initiator system; 5. Simulation results of the Fraunhofer Ernst-Mach-Institute system; 6. Design analysis; 7. Conclusion; Acknowledgements; References; ... In this work all the physical processes, including their coupling, are modelled using multi-physical models ...

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WebJan 1, 2024 · Under the action of a high pulse current, the explosive metal foil completes the transformation of solid, liquid, gas and plasma in a very short time, forming a high-temperature and high-pressure... WebTo make the specification consistent with the EFI technology and 1316 safety requirements, the proposed changes require statistical analysis testing at temperature extremes, …

WebAug 1, 2024 · According to the working principle of EFI, the metal bridge foil plays the role of converting the electric energy stored in the capacitor into the kinetic energy of the flyer, … WebThe activity began with funding Exploding Foil Initiator (EFI) technology in conjunction with RARDE (now QinetiQ and Dstl). This built on the existing high speed switch tube technology already developed at Teledyne e2v. Through the late 1980s and early 1990s, work was concentrated on EFI initiator research and characterisation, explosive

WebThe exploding foil itself consists of a narrowing in the copper transmission line. The current will mainly heat this part of the foil. When a critical current and current rise time is exceeded, the foil will turn into a plasma. The plasma pressure and the Lorentz forces of the current will accelerate the flyer through the barrel. WebApr 30, 2024 · Analytical and numerical models, validated against published data, were developed to calculate the velocity and time of arrival duration (ToAD) of the flyer-plasma …

WebMar 9, 2024 · The exploding foil initiator provides a new method of multi-point detonation control. It transmits signals through the circuit without requiring complicated safety components and has the advantages of safety, reliability, small size, and promptness, which make it especially suitable for multi-point initiation control when applied to a warhead.

WebProperties of Exploding Foil Flyer ... Yao Wang et al-X-ray imaging and 3D reconstruction of in-flight exploding foil initiator flyers T. M. Willey et al-This content was downloaded from IP address 207.46.13.18 on 02/05/2024 at 22:53. ... of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI t tech vehicle enhancementsWebAug 17, 2024 · Exploding foil initiator is a kind of electric explosive device and the primary energy source of weapon system. Importantly, the reliability for the whole weapo Study on … phoenix army recruiting battalionWebApr 1, 2015 · Exploding foil initiators (EFIs) are highly suitable for use in inline fuze trains containing only secondary high explosives, mainly due to their insensitivity with respect to electromagnetic disturbances or mechanical stress, their precisely controllable fire characteristics and compact size. During EFI operation various multi-physical phenomena … phoenix aruba hotelWebDuring initiation, the wire heats with the passing current until melting point is reached. The heating rate is high enough that the liquid metal has no time to flow away, and heats … phoenix army reserve centerhttp://proceedings.ndia.org/5560/Wednesday/Session_III-A/Nickolin.pdf phoenix aromas njWebJun 1, 2024 · Conventional exploding foil initiator (EFI) in ignition or detonation applications hosts many performance advantages, but was hindered by the bulky, inaccurate, inefficient and expensive... phoenix ars goetiaWebOur Exploding Bridge Wire (EBW) contains a lead-free explosive (CLCP) functioned with an ECOSSE PX-1 Firing Set and initiate secondary booster detonation in wireline guns. Exploding bridge wires (EBW) detonators have a small … t tech waterproof band