What is low Brisance?
The characteristic of the shattering effect of the energy released by an explosion or an explosive material. High brisance = extensive shattering. Low brisance = minimal shattering.
What does the word deflagrate mean?
Definition of deflagrate transitive verb. : to cause to deflagrate — compare detonate sense 1. intransitive verb. : to burn rapidly with intense heat and sparks being given off.
What is the speed of an explosion?
Gas explosions can either deflagrate or detonate based on confinement; detonation velocities are generally around 1600 m/s to 1800 m/s but can be as high as 3000 m/s. Solid explosives often have detonation velocities ranging beyond 4000 m/s to 10300 m/s.
What are examples of high explosives?
High Explosives – explosive materials that can be caused to detonate by means of a blasting cap. A few examples of high explosives would be boosters, detonators, dynamite, water gels/slurries, and emulsions.
What is Deflagrating spoon?
Deflagration spoons are stainless steel spoons used for heating substances until they burn away.
What are the example of explosive?
Examples include primary explosives such as nitroglycerin that can detonate with little or no stimulus and secondary explosives such as dynamite (trinitrotoluene, TNT) that require a strong shock (from a detonator such as a blasting cap). Low explosives change into gases by burning or combustion.
What fuels are explosive?
High Explosives Liquids, solids or mixtures in which detonation waves can be initiated by electrical or chemical means. Common examples are TNT, nitroglycerin, PETN, lead azide, and mixtures of ammonium perchlorate and fuel oil.
What are the 3 types of explosives?
explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period. There are three fundamental types: mechanical, nuclear, and chemical. A mechanical explosive is one that depends on a physical reaction, such as overloading a container with compressed air.
What are the four types of explosives?
1. Introduction
- blasting and bulk explosives (explosives used for commercial blasting applications or for their manufacture);
- perforating explosives (intended for use in the oil and gas well industry);
- special-application explosives (high explosives used for other applications, including primary explosives).
What is the origin of brisance?
The term can be traced from the French verb “briser” (to break or shatter) ultimately derived from the Celtic word “brissim” (to break). Brisance is of practical importance for determining the effectiveness of an explosion in fragmenting shells, bomb casings, grenades, structures, and the like.
What is meant bybrisance?
brisance – the shattering or crushing effect of a sudden release of energy as in an explosion.
What is the value of brisance?
The value of brisance depends on the application. At one extreme, if an explosive is to be used for propulsion, e.g. by driving a piston or a bullet, brisance is likely to be undesirable, because the objective will be to move the load, not to shatter it or the engine or firearm, nor to produce a loud report.
What is the root word of Brise?
The shattering effect of the sudden release of energy in an explosion. [French, from brisant, present participle of briser, to break, from Old French brisier, from Vulgar Latin *brisiāre, perhaps of Celtic origin .] American Heritage® Dictionary of the English Language, Fifth Edition.
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