Computer calculations on the initiation of high-explosive detonation

Palmer, R. G.

doi:10.1093/comjnl/6.1.39

Cited by 5 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to ] IP: that The surface observations are therefore not at variance with a q(o) that resembles in shape 'Y(o) as suggested by III (2). Figure 28 shows a q(o) that satisfies these conditions.…”

Section: Q(o)lqo= (1+0 2 /2) Exp[('y(o) -'Yo)inkt] Ili(2)mentioning

confidence: 72%

See 1 more Smart Citation

Evaporation of NaCl Cleavage Planes in Vacuum

Budke

1969

Journal of Applied Physics

View full text Add to dashboard Cite

Cleavage planes of NaCI (99.999%) were produced in air and heated in vacua of 10-'-10-6 Torr between 454° and 593°C. Reproducible variations in pit densities were observed between 10 6 and 10 2 cm-2 • Evidence IS presented showing that these variations are due to changes in surface contamination. Matching cleavage planes showed no correlation in their pit sites; slip lines and small-angle boundaries showed no perferred pitting. It is concluded that dislocation emergence points per se are not sufficient for the formation of thermal pits in vacuum of 10-6 Torr. The evaporation process caused the development of (1) pits with different slope angles and (2) slope-dependent variatIOns of their shape and faceting behavior. There was no rounding of leading or trailing edges between surface sections of different inclinations. These observations cannot be explained in terms of evaporation theories which have been suggested before. A different interpretation in terms of surface energy is given. A numerical estimate for the required variations in surface energy is included.

show abstract

Section: Q(o)lqo= (1+0 2 /2) Exp[('y(o) -'Yo)inkt] Ili(2)mentioning

confidence: 72%

“…'Y(o) was calculated with the help of III (2). q(o) was adjusted so that 'Y values for the actually observed slopes that form a faceting step (10 and 5°) deviate by about equal amounts of surface energy from the true equilibrium orientations [0 0 and 8,~18° according to III (1) J.…”

Section: Q(o)lqo= (1+0 2 /2) Exp[('y(o) -'Yo)inkt] Ili(2)mentioning

confidence: 99%

Evaporation of NaCl Cleavage Planes in Vacuum

Budke

1969

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

Whitham's shock-wave approximation applied to the initiation of detonation in solid explosives

Pack

Warner

1965

Symposium (International) on Combustion

View full text Add to dashboard Cite

Calculation of the Characteristics of Detonation Waves in Real Materials

Boyer

1969

Journal of Applied Physics

View full text Add to dashboard Cite

The physical model and mathematical methods used in computing the behavior of detonation waves in real materials are described and used to study the detonation behavior of TNT. Data needed as input to the problem are the equation-of-state parameters of the reacted and unreacted phases and the reactionrate parameters. The equation-of-state data are derived from experimentally obtained Hugoniots of the explosive and from experimentally determined steady-state detonation velocities. Values for the rate parameters are obtained by matching the growth trajectories of computed waves with experimentally determined curves over a range of initiation pressures. Good agreement is found between calculated and observed reaction-zone thicknesses, and a trajectory computed for an initiation pressure significantly removed from those at which the rate parameters were evaluated showed fair agreement with experiment.

show abstract

Computer calculations on the initiation of high-explosive detonation

Cited by 5 publications

References 0 publications

Evaporation of NaCl Cleavage Planes in Vacuum

Evaporation of NaCl Cleavage Planes in Vacuum

Whitham's shock-wave approximation applied to the initiation of detonation in solid explosives

Calculation of the Characteristics of Detonation Waves in Real Materials

Contact Info

Product

Resources

About