How does an exploding foil initiator work

WebTo make the specification consistent with the EFI technology and 1316 safety requirements, the proposed changes require statistical analysis testing at temperature extremes, … 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

Investigating the explosion process of nine-point …

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 ... 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, … in an empty pile of brass https://prideprinting.net

Modeling of the exploding foil initiator and related circuitry for the ...

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... WebJan 7, 2010 · Exploding Foil Initiators (EFIs) provide a safe and reliable means of initiating explosives. They are highly insensitive to mechanical shock and electrical interference, requiring a specific high current pulse for initiation. This allows the use of insensitive secondary explosives, eliminating more sensitive primary explosives. inax shower toilet 取説

Exploding Foil Initiator Development

Category:EXPLODING FOIL INITIATOR - PacSci EMC

Tags:How does an exploding foil initiator work

How does an exploding foil initiator work

Investigating the explosion process of nine-point …

http://www.e2v.com/resources/account/download-literature/124 WebLaunch > Vehicle component > Exploding Foil Initiator Summary AN EXPLODING FOIL INITIATOR (EFI), ALSO KNOWN AS SLAPPER DETONATOR, IS USED TO PROVIDE …

How does an exploding foil initiator work

Did you know?

WebJul 3, 2024 · Exploding foil initiators (EFIs), also known as slapper initiators or detonators, offer clear safety and timing advantages over other means of initiating detonation in high … WebEFDI (Exploding Foil Deflagrating Initiator) • LEEFI with HNS-4 to BKNO3 Transition • Based on Slapper Detonator Technology for Warheads • Now Under Development and Qualification HNS-IV Pellet BKNO 3 Deflagration High Voltage Pulse Flyer Slapper Bridge

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 WebESADs use an Exploding Foil Initiator (EFI), a key enabling technology for the detonator used in the nuclear weapons programs for decades. On the conventional weapons front, a Low-Energy EFI (LEEFI) has been the only approved technology for ESADs since the mid-1990s.

WebAn exploding foil initiator (EFI), also known as Slapper Detonator, are uses to initiate insensitive explosive materials usually in the first stage of an explosive chain, it is a … WebSep 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, …

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 …

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 … inax sms-1001aWebLEEFI = Low Energy Exploding Foil Initiator (EFI) Packaged in a convenient TO-5 can with orientation tab. Inherently safer than hotwire detonators. Qualified to MIL-DTL-23659, … inax sms-0107bWebAn 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 … inax sms-1001bWebMar 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 … in an energy pyramid of an ecosystemWebMay 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. in an energy pyramid how much energy is lostWebJan 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 … inax sms-1316bWebThe 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. in an energy pyramid what is a consumer