摘要:

AbstractThe aim of this investigation is to determine the influence of the energy release from a combustible two‐phase media on the blast wave generated by an explosive charge, during the first stages of the process. For this purpose ball charges of “Composition B” were detonated in air, in pure nitrogen containing suspended solid particles of carbon, and in pure oxygen containing particles of aluminum and carbon. The blast wave's velocity was measured in all the media using fast frame camera 300,000 f.p.s. and streak photography at 2 mm/μs. The influence of release or absorption of energy by the medium was investigated by comparing experiments done in inert media with those conducted in combustible media while other parameters are kept constant.Kozorezov's triple isentrope model was compared to the results, and good agreement is found. The article contains detailed information on the experiments and the calculations per

ISSN:0721-3115    

DOI:10.1002/prep.19780030402

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY

摘要:

AbstractIn a cylindrical arrangement as deviced by G. R. Fowles and W. M. Isbell for the generation of Mach‐reflection of shock waves in solids Mach‐reflection of detonation waves in condensed high explosives with different detonation velocities is investigated. The process is observed directly by flash x‐ray radiography. By means of this arrangement it is possible to generate via Mach‐reflection a plane detonation wave, the Mach‐disk. Characteristics and applications of the Mach‐disk ar

ISSN:0721-3115    

DOI:10.1002/prep.19780030403

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY

摘要:

AbstractA finite difference Eulerian computer code with some very useful Lagrangian features is employed to study the impact of a projectile on a heavily confined, inert, solid explosive. Temperature rise due to shock compression and plastic deformation in both the explosive and the metal confinement is estimated. It is concluded that in situations where the shock is weak and the explosive does not initiate shortly after the projectile impact, the possibility of it so doing, due to plastic deformation, at a later time cannot be discounted.

ISSN:0721-3115    

DOI:10.1002/prep.19780030404

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY

摘要:

AbstractThermal decomposition of ammonium perchlorate‐polystyrene propellant as a function of oxidizer loading has been found to behave in a fashion analogous to the thermal decomposition of ammonium perchlorate as a function of precompression pressure. It has been argued that the above behaviour of the propellant is due to the strain caused by the binder film on ammonium perchlorate contained in the propellant matrix. The presence of strain has been demonstrated independently by x‐ray diffraction peak and infrared peak broadening and strain energy measureme

ISSN:0721-3115    

DOI:10.1002/prep.19780030405

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY

ISSN:0721-3115    

DOI:10.1002/prep.19780030406

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY

ISSN:0721-3115    

DOI:10.1002/prep.19780030401

出版商:WILEY‐VCH Verlag GmbH    

年代:1978

数据来源: WILEY