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  2. Detonation - Wikipedia

    en.wikipedia.org/wiki/Detonation

    Detonation (from Latin detonare 'to thunder down/forth') [1] is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front of it.

  3. Engine knocking - Wikipedia

    en.wikipedia.org/wiki/Engine_knocking

    In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.

  4. Deflagration to detonation transition - Wikipedia

    en.wikipedia.org/wiki/Deflagration_to_detonation...

    The phenomenon is exploited in pulse detonation engines, because a detonation produces a more efficient combustion of the reactants than a deflagration does, i.e. giving a higher yields. Such engines typically employ a Shchelkin spiral in the combustion chamber to facilitate the deflagration to detonation transition. [2] [3]

  5. Explosive - Wikipedia

    en.wikipedia.org/wiki/Explosive

    The explosion could propagate to all or the majority of the items stored together, causing a mass detonation. There will also be fragments from the item's casing and/or structures in the blast area. 1.2 Non-mass explosion, fragment-producing.

  6. Deflagration - Wikipedia

    en.wikipedia.org/wiki/Deflagration

    When studying or discussing explosive safety, or the safety of systems containing explosives, the terms deflagration, detonation and deflagration-to-detonation transition (commonly referred to as DDT) must be understood and used appropriately to convey relevant information.

  7. Improvised explosive device - Wikipedia

    en.wikipedia.org/wiki/Improvised_explosive_device

    Since the detonation of the first IED in Iraq in 2003, more than 81,000 IED attacks have occurred in the country, killing and wounding 21,200 Americans. [81] Beginning in July 2003, the Iraqi insurgency used IEDs to target invading coalition vehicles. According to The Washington Post, 64% of U.S. deaths in Iraq occurred due to IEDs. [82]

  8. RDX - Wikipedia

    en.wikipedia.org/wiki/RDX

    RDX undergoes a deflagration to detonation transition (DDT) in confinement and certain circumstances. [73] The velocity of detonation of RDX at a density of 1.80 g/cm 3 is 8750 m/s. [74] It starts to decompose at approximately 170 °C and melts at 204 °C. At room temperature, it is very stable. It burns rather than explodes.

  9. Detonating cord - Wikipedia

    en.wikipedia.org/wiki/Detonating_cord

    Detonating cord (also called detonation cord, detacord, detcord, blasting rope, or primer cord) is a thin, flexible plastic tube usually filled with pentaerythritol tetranitrate (PETN, pentrite). With the PETN exploding at a rate of approximately 6,400 m/s (21,000 ft/s), any common length of detonation cord appears to explode instantaneously.