摘要:

AbstractThe air blast effect produced by high explosives with additives of various types and quantities was studied. To this end, air shock intensities and pressure profiles were recorded at certain distances from an unconfined charge. Among those additives which by their reaction with the gaseous products of the detonated explosive theoretically should increase the energy potential, aluminum and zirconium exhibit a positive effect while other substances such as boron react too slowly for strengthening the blast effect. An addition of aluminum (32 weight%) causes the shock wave pressure to increase by about 15% and the momentum by 30% as compared with the pure explosive.

ISSN:0721-3115    

DOI:10.1002/prep.19760010202

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY

摘要:

AbstractTo determine burning velocities of solid propellants at high pressures, a new type of manometric bomb of 0.1 1 volume has been designed. Tightening is provided by a cartridge section from a 30 mm HS 831 steel case. 3 0 to 50 ms after the maximum, the pressure is automatically released by erosion of a 1 mm nozzle, this time lag being given by the electric igniter placed before the nozzle and by blocking it for a short time.The bomb has been applied to measure pressures p in a range up to 7000 bar as a function of loading density A for a double base propellant. The curve p(A) shows a change of slope at about 5000 bar for which explanation is still lacking.

ISSN:0721-3115    

DOI:10.1002/prep.19760010203

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY

摘要:

AbstractThe principles of the statistical valuation for the comparison of analytical procedures by evaluating model analyses are described. A computer program in FORTRAN I1 was developed and used for the evaluation of two process examples from the analytic field of explosives, i.e. determination of nitroglycerin and nitroglycol by means of gas chromatography.

ISSN:0721-3115    

DOI:10.1002/prep.19760010204

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY

摘要:

AbstractThe effects of various processing and compositional variables the cure rate and mechanical properties of epoxide‐cured CTPB gumstocks have been evaluated.Viscosity changes during the initial stages of cure and tensile properties of fully cured gumstocks are sensitive to the nature and functionality of the epoxide curative even though comparisons are made at epoxy/carboxyl equivalence ratios giving the same density of crosslinks. Batch‐to‐batch variations in prepolymer structure, functionality and impurities also are important. In particular, glutaric acid impurity inhibits the cure, the effect being very marked when the mixing procedure involves heating the prepolymer and catalyst together before the addition of epoxide.Effects due to plasticisers and ammonium perchlorate filler also are reported. The mechanical behaviour of gumstocks and of corresponding filled systems (propellants) show little correl

ISSN:0721-3115    

DOI:10.1002/prep.19760010205

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY

ISSN:0721-3115    

DOI:10.1002/prep.19760010206

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY

ISSN:0721-3115    

DOI:10.1002/prep.19760010201

出版商:WILEY‐VCH Verlag GmbH    

年代:1976

数据来源: WILEY