[Topic 12] Explosives Flashcards
Substance or device that can be made to produce a volume of rapidly expanding gases in an extremely short period of time.
Explosives
A gas, liquid, or solid expansion of which can be used to impart motion to another substance or object.
Propellants
substances that are intended to kill, injure, or incapacitate enemy personnel.
Toxic chemical agents
Industrial uses of explosives, propellants, and toxic chemical substances (3)
- Mining
- Forestry
- Construction
- Avalanche Control
Classification of Explosives (3)
- Initiating or Primary Explosives
- High Explosives
- Low Explosives
Sensitive materials that can start using small fire or slight blow and very dangerous to handle, used in small quantities,
Initiating or Primary Explosives
Nonchalant, quite insensitive to mechanical shock and flame but when explode with great violence.
High Explosives
They only burn or deflategate and need container to build up pressure.
Low Explosives
Properties of Explosives
- Power or Brisance
- Sensitivity to Impact
- Heat of Explosion
- Velocity of the Detonation Wave
Volume expansion and is used to measure power or brisance.
Sand Test or Trauzl Test
High which a standard weight must be allowed to fall in order to detonate
Sensitivity to Impact
Typical velocity of the detonation wave.
6 to 8 km/s
It is determined by threading wires across the column.
Velocity of the detonation wave
Determined using thermodynamic calculation.
Heat of Explosion (Qv)
What is TNT?
Trinitrotoluene
Used in GAZA Bombing having 80% TNT and 20% aluminum powder.
BLU 109-Tritonal
How many stages of nitration is needed in the manufacturing of TNT?
Three stages
liquid or solid system with the highest practical temperature and the lowest molecular weight.
Propellants
Power of thrust
Specific Impulse
Absolute temperature over average molecular weight
Specific impulse
Requirements for Toxic chemicals (5)
- Very volatile (liquefiable
- stable enough to withstand storage
- should not react with water
- will not decompose during explosion
- cheap and easy
Classification of toxic chemicals (5)
- Lachrymators or Tear Gases
- Sternutators
- Lung Injurants
- Vesicant or Blister producing agents
- Nerve Gases
mustard gas and smells like mustard
Vesicants
Inability to see
Tear Gas