What is the difference between deflagration and detonation?

In its most benign form, a deflagration may simply be a flash fire. In contrast, a detonation is characterized by supersonic flame propagation velocities, perhaps up to 2,000 metres per second (4,500 mph), and substantial overpressures, up to 2 megapascals (290 psi).

What are the effects of explosives?

The basic immediate effects of explosive weapons are: 1) a blast wave—a wave of pressure that radiates out from the detonation at high speed; 2) fragmentation—material is broken up and projected outwards from around the point of detonation, creating high-velocity fragments; and 3) heat—the detonation of explosives …

What is the difference between an explosive and a propellant?

Propellants correspond to deflagration rather than detonation like explosives. The major difference between propellants and explosives is that propellants provide a much greater duration of pressure with a significantly lower loading rate in the borehole than explosives.

What is the difference between deflagration and conflagration?

is that conflagration is a large fire extending to many objects, or over a large space; a general burning while deflagration is the act of deflagrating; an intense fire; a conflagration or explosion specifically, combustion that spreads subsonically via thermal conduction.

How does an explosion affect the environment?

Explosive weapons can devastate a landscape. They can reduce buildings to toxic rubble and destroy long-cherished trees. They can contaminate the soil for decades and cause poisons to leach into once healthy rivers. They can decimate ecosystems and disturb the harmony of nature.

What is the correct meaning of detonated?

: to explode with sudden violence. transitive verb. 1 : to cause to detonate detonate a bomb — compare deflagrate. 2 : to set off in a burst of activity : spark programs that detonated controversies.

Who makes Mk 82 bombs?

General Dynamics
Mark 82 bomb

Mark 82 General Purpose (GP) Bomb
Designer General Dynamics
Manufacturer General Dynamics
Unit cost $2,082.50 (in 2001)
Variants GBU-12 Paveway II GBU-38 JDAM

How is Brisance measured?

A practical method of measuring brisance is the sand crush test, in which a measured sample of explosive is detonated in sand (of 30 mesh grain size), and the shattering effect on the grains of sand is evaluated by sieving after for change in the sand grain size. The sand test is also used to determine TNT equivalency.

What is the meaning of brisance?

Brisance / brɪˈzɑːns / is the shattering capability of a high explosive, determined mainly by its detonation pressure. The term can be traced from the French verb “briser” (to break or shatter) ultimately derived from the Celtic word “brissim” (to break).

What is the difference between affect and effect in English?

Affect and effect are two of the most commonly confused words in English, but don’t worry—we’ll help you keep them straight. The basic difference is this: affect is usually a verb, and effect is usually a noun. ‘Affect’ as a Verb. Affect, when used as a verb, means “to act on or change someone or something.” the drought affected plant growth

What is the importance of the brisance test?

Brisance is of practical importance for determining the effectiveness of an explosion in fragmenting shells, bomb casings, grenades, structures, and the like. The sand crush test and Trauzl lead block test are commonly used to determine the relative brisance in comparison to TNT (which is considered a standard reference for many purposes).

What is primer brisance and how does it work?

Primer brisance mostly depends on the length of the flame that leaps out of the flash-hole after the firing pin whacks the primer cup. This flame can also be manipulated to last a little longer, by adding tiny particles of other flammable material to the priming compound.