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EnglishMisznay Schardin effectMS
Frencheffet Misznay-Chardin
Spanishefecto Misznay Schardin
Russianэффект Миснея-Шардина
Chinese Misznay Schardin 效应
أثر Misnay Schardin
Note Eng The Misznay–Schardin effect (named after the explosive experts who described it), or platter effect, is a characteristic of the detonation of a broad sheet of explosive. The explosive blast expands directly away from (perpendicular to) the surface of an explosive. Unlike the blast from a rounded explosive charge, which expands in all directions, the blast produced by an explosive sheet expands primarily perpendicular to its plane, in both directions. If one side is backed by a heavy or fixed object, however, the majority of the blast (that is, most of the rapidly expanding gas and its kinetic energy) will be sent in the direction away from it.
Used for the penetration of armour. A shallow dished metal plate (normally copper or steel) is forged into a projectile by the detonation of a charge. The fragment, sometimes called a 'self-forging fragment" or "Explosively Formed Projectile (EFP)" has sufficient density and velocity to penetrate armour at ranges of several metres. The range makes the Misznay Schardin plate ideal for use in off-route mines while the low weight and compact profile have lead to its widespread use in modern scatterable anti-tank mines.

Variant spelling: Misnay-Chardin
Note Frn On parle d'effet "Misnay-Chardin à auto-formation de boulet"
Subject landmines and mine action
DBName E/F/S/R/A/C: Terminology Bulletin No 349 on Humanitarian Demining, 1997