Search results
Results from the WOW.Com Content Network
A detonator is a device used to make an explosive or explosive device explode. [1] Detonators come in a variety of types, depending on how they are initiated (chemically, mechanically, or electrically) and details of their inner working, which often involve several stages.
Series 5 tests are used to determine if an article can be assigned to HD1.5 'Very Insensitive Explosive'; series 6 tests are used to determine the classification of an article within Hazard Divisions 1.1, 1.2, 1.3, or 1.4; and series 7 tests are used to determine if an article can be assigned to HD 1.6 as an article containing predominantly ...
The exploding-bridgewire detonator at the far left triggers a semi-spherical detonation wave through the high-speed outer explosive. (It is semi-spherical because the exploding-bridgewire acts as a point-detonator.) As the wave is transferred to the precisely shaped inner explosive, a new spherical wave—centered on the object—is formed.
This new design introduced several other changes to improve resistance and give the device a longer shelf life, such as switching the material of the body from 17-4 PH steel to Inconel 718. [ 4 ] After the Apollo program ended, the Initiator was renamed and re-used on other spacecraft , such as the Space Shuttle .
Trauzl lead block before and after a test (1 – sand | 2 – Explosive and detonator | 3 – lead) The test is performed by loading a 10-gram foil-wrapped sample of the explosive into a hole drilled into a lead block with specific dimensions and properties (a soft lead cylinder, 200 mm diameter and 200 mm high, with the hole 125 mm deep, and ...
In the first type of generator (MK-1, 1951) developed by Robert Lyudaev, the magnetic flux produced by a wound conductor is confined to the interior of a hollow metallic tube surrounded by explosives, and submitted to a violent compression when the explosives are fired; a device of the same type was developed in the United States a dozen years ...
Two formulations are commonly used: 70% HMX & 30% TNT; 75% HMX & 25% TNT; Given that HMX has a much higher detonation velocity than TNT (over 2,000 metres per second faster) and forms the main part of this explosive blend, the brisance characteristics of Octol can be inferred.
The velocity of detonation is an important indicator for overall energy and power of detonation, and in particular for the brisance or shattering effect of an explosive which is due to the detonation pressure. The pressure can be calculated using Chapman-Jouguet theory from the velocity and density.