How do you find the velocity of detonation?
How do you find the velocity of detonation?
The formula is: D = a + bρ (1.1) 2 Page 13 It is suggested that the density be within 0.85 of the TMD for this equation to be accurate within 10% to 15%. One method set forth by Kalmet and Jacobs [9] uses a specific hierarchy for the detonation products to estimate detonation velocity.
What is the detonation velocity of TNT?
6950 m./sec.
The velocity of detonation of T.N.T. rises as the diameter of the cylinder is increased from a ‘boundary diameter’, below which there is no propagation, to a ‘limiting diameter’ at which the velocity reaches a maximum value. In castings of density 1.625 the maximum velocity is 6950 m./sec.
What is the detonation velocity of ANFO?
The detonation velocity varies from 3,000 to 4,000 m/sec for the 1 to 10 pct range of fuel oil content, suggesting that ANFO mixes with improper fuel oil content may appear to detonate properly, while their fume production differs significantly from optimum.
What is the term Brisance?
Definition of brisance : the shattering or crushing effect of an explosive measurable by the crushing of sand or the compression of a metal cylinder and dependent upon the rate of detonation and other factors.
What is a detonation wave?
A detonation is a supersonic combustion wave that consists of a shock wave driven by energy release from closely coupled chemical reactions. These waves travel at many times the speed of sound, often reaching speeds of Mach 5, as in the case of a hydrogen–air fuel mixture.
What is the detonation speed of C4?
Table 3
| No. | Explosive type | EXPLO5 |
|---|---|---|
| Detonation velocity (m·s−1) | ||
| 1 | Comp C4 [21] | 7815 |
| 2 | EPX-1 [20] | 7398 |
| 3 | Semtex 10 [27] | 7370 |
What is ANFO blasting?
Available in both bulk and bagged form, ANFO Prilled Ammonium Nitrate (AN) is a nominal blend of porous Ammonium Nitrate prill and fuel oil. Although ANFO has zero water resistance, it has a wide variety of applications in dry hole blasting conditions.
What is the detonation velocity of TATB?
As an explosive, it has a detonation velocity of 7,350 meters per second, less than RDX (8,750), but more than TNT (6900). The main distinguishing feature of TATB is its insensitivity to shock, impact, vibration, or flame. It is extremely difficult to accidentally detonate.
What is TATB explosive made of?
TATB is a benzene ring with alternating nitro and amino groups attached around it. As an explosive, it has a detonation velocity of 7,350 meters per second, less than RDX (8,750), but more than TNT (6900). The main distinguishing feature of TATB is its insensitivity to shock, impact, vibration, or flame.
What is the density of TATB?
At a pressed density of 1.80, TATB has a velocity of detonation of 7,350 meters per second. TATB has a crystal density of 1.93 grams/cm 3, though most forms currently in use have no higher density than 1.80 grams/cm 3. TATB melts at 350 °C.
What is the use of TATB in nuclear weapons?
TATB is normally used as the explosive ingredient in plastic bonded explosive compositions, such as PBX-9502, LX-17-0, and PBX-9503 (with 15% HMX). These formulations are described as Insensitive High Explosives or IHE in nuclear weapons literature.
