Research on the effect of the charge diameter on the slow cook-off performance of HMX base explosive

Shocking temperature rise of the shaped charge with porous liner before collapse was calculated based on the Herrman equation of state. Shaped charges with 36mm charge diameter were used to fire at the 603 armor steel target, the penetration-standoff curves(P-S) of the shaped charge liner with 88.6% and 90.3%T.D were measured and compared. It is shown that proper porosity is helpful to lengthen the jet break up time and penetration depth，which is of significance for the application of porous liner.

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A Method of Parameterising Hydrocode Kinetic Models for Non-Ideal Explosives Based on the Variation of Detonation Velocity with Charge Diameter

Shock Waves in Condensed Matter ◽

10.1007/978-1-4613-2207-8_135 ◽

1986 ◽

pp. 917-922 ◽

Cited By ~ 1

Author(s):

G. A. Leiper ◽

I. J. Kirby

Keyword(s):

Detonation Velocity ◽

Kinetic Models ◽

Charge Diameter

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A numerical study of the charge diameter effect on unsteady detonation

Acta Astronautica ◽

10.1016/0094-5765(76)90009-6 ◽

1976 ◽

Vol 3 (11-12) ◽

pp. 1005-1013 ◽

Cited By ~ 4

Author(s):

Katsumi Tanaka ◽

Tsutomu Hikita

Keyword(s):

Numerical Study ◽

Charge Diameter ◽

Diameter Effect

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Diameter Effect on Detonation Velocity of Ammonium Nitrate and Activated Carbon Mixtures

Materials Science Forum ◽

10.4028/www.scientific.net/msf.566.101 ◽

2007 ◽

Vol 566 ◽

pp. 101-106 ◽

Cited By ~ 1

Author(s):

Atsumi Miyake ◽

Hidefumi Kobayashi ◽

Hiroshi Echigoya ◽

Katsumi Katoh ◽

Shiro Kubota ◽

...

Keyword(s):

Activated Carbon ◽

Ammonium Nitrate ◽

Detonation Velocity ◽

Stoichiometric Composition ◽

Steel Tube ◽

Detonation Properties ◽

Charge Diameter ◽

Tube Test ◽

Predicted Values ◽

Good Agreement

To obtain a better understanding of detonation properties of ammonium nitrate (AN) and activated carbon (AC) mixtures, steel tube test with several diameters was carried out for various compositions of powdered AN and AC mixtures and the influence of the charge diameter on the detonation velocity was investigated. The results of test indicated that the detonation velocity increased with the increase of the charge diameter. The experimentally observed values were far below the theoretically predicted values made by the thermohydrodynamic CHEETAH code and they showed so-called non-ideal detonation. The extrapolated detonation velocity of stoichiometric composition to the infinite diameter showed a good agreement with the theoretical value.

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Velocity of detonation and charge diameter in some RDX-driven heterogenous explosives: PBXW-115, PBXN-111, composition H-6 and composition B

Journal of Energetic Materials ◽

10.1080/07370659608216067 ◽

1996 ◽

Vol 14 (3-4) ◽

pp. 257-270

Author(s):

Daniel J. Whelan ◽

Robert J. Swinton ◽

Gunter Bocksteiner

Keyword(s):

Charge Diameter ◽

Velocity Of Detonation

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Simulations on concrete penetration of shaped charges

The Journal of Defense Modeling and Simulation Applications Methodology Technology ◽

10.1177/1548512911410757 ◽

2011 ◽

Vol 9 (4) ◽

pp. 321-326

Author(s):

M Sarper Yavuz ◽

R Orhan Yildirim

Keyword(s):

Compressive Strength ◽

Numerical Simulations ◽

Cone Angle ◽

Shaped Charge ◽

Concrete Slabs ◽

Liner Material ◽

Charge Diameter ◽

Strength Concrete

In this paper, the effects of the use of various aluminium materials as liner material in shaped charges for the perforation of concrete slabs are examined with numerical simulations. Using AUTODYN-2D software, formation of the shaped charge jets for seven different aluminium materials are modelled first and then these jets are directed to 35 MPa compressive strength concrete slabs. Those analyses are performed for a constant liner thickness which corresponds to 8% of the shaped charge diameter. Furthermore, the effect of standoff on the penetration of concrete slabs is examined by using shaped charges with the same geometry and liner material (7075-T6). The cone angle of the shaped charge is taken as 100°.

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NON-IDEAL DETONATION PROPERTIES OF AMMONIUM NITRATE AND ACTIVATED CARBON MIXTURES

International Journal of Modern Physics B ◽

10.1142/s0217979208046712 ◽

2008 ◽

Vol 22 (09n11) ◽

pp. 1319-1324 ◽

Cited By ~ 2

Author(s):

ATSUMI MIYAKE ◽

HIROSHI ECHIGOYA ◽

HIDEFUMI KOBAYASHI ◽

TERUSHIGE OGAWA ◽

KATSUMI KATOH ◽

...

Keyword(s):

Activated Carbon ◽

Ammonium Nitrate ◽

Detonation Velocity ◽

Stoichiometric Composition ◽

Steel Tube ◽

Detonation Properties ◽

Charge Diameter ◽

Predicted Values ◽

Good Agreement

To obtain a better understanding of detonation properties of ammonium nitrate (AN) and activated carbon (AC) mixtures, steel tube tests with several diameters were carried out for various compositions of powdered AN and AC mixtures and the influence of the charge diameter on the detonation velocity was investigated. The results showed that the detonation velocity increased with the increase of the charge diameter. The experimentally observed values were far below the theoretically predicted values made by the thermodynamic CHEETAH code and they showed so-called non-ideal detonation. The extrapolated detonation velocity of stoichiometric composition to the infinite diameter showed a good agreement with the theoretical value.

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