R. Meyer J. Köhler A. Homburg Explosives

Projectile Impact Sensitivity
Projectile Impact Sensitivity
Beschußempfindlichkeit; sensibilité à l’impact de projectiles
W also Armor Plate Impact Test and W Impact Sensitivity.
The projectile impact sensitivity is the reaction of an explosive charge
if hit by infantry projectiles. Impact safety is given if the charge does
not fully explode at impact. The projectile impact sensitivity does not
only depend on the type of explosive itself, but also on the nature of its
confinement (metallic, plastic, thin-walled, or thick-walled). A single
bullet impact by an ordinary or a hard steel cored projectile, or a
machine gun burst, will create different reactions.
A test has been developed in Sweden: cylinders made of copper,
brass, and aluminum (15 mm P) are brought to accurately adjusted
and measured impact velocities (W Impact Sensitivity).
Propellant
266
Treibstoff; produit propulsif; W Gunpowder
Explosive material with low rate of combustion. May be either solid or
liquid. Will burn smoothly at uniform rate after ignition without depending
on interaction with atmosphere. Single base propellant consists
primarily of matrix of nitrocellulose. Double base propellant contains
nitrocellulose and nitroglycerine. Composite propellant contains oxidizing
agent in matrix of binder.
Propellant Types:
a) Composite Finely divided oxidizers dispersed in fuel
matrix.
(1) Ammonium nitrate oxidizer
(2) Ammonium perchlorate oxidizer
(3) Nitramine (RDX or HMX) oxidizer
b) Double-Base Homogeneous colloidal propellant consisting
of nitrocellulose dissolved in plasticizer comprised
of nitroglycerine and inert materials
c) Plastisol PVC-composite or double-base propellant in
which polymer is dissolved in plasticizier
d) Composite Double base propellant containing
Double-Base dispersed phase of finely ground oxidizer and
(usually) powdered fuel additive
e) Single-Base Colloid of nitrocellulose and inert plasticizers