caa a22 4500 47577664X CHVBK 20180406123632.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF02468729 doi (NATIONALLICENCE)springer-10.1007/BF02468729 Shock-wave structure in the near zone upon explosion of spatial charges in air [Elektronische Daten] [A. Pinaev, V. Kuzavov, V. Kedrinskii] Profiles and values of pressure in shock waves are determined for the case of spherical, linear, and spatial charges, such as a coil of a bulk spiral and plane annular coils and Archimedes' spiral of various lenths, exploded in air. In the case of explosion of rings and spirals, a complex wave structure in the form of a sequence of several shock waves is registered near the charges along the spiral axes; a weaker attenuation of shock waves with distance and pressure amplitudes two to three times higher than in the case of a spherical charge of the same mass are observed. It was found that an increase in the length of a plane spiral does not lead to an increase in the maximum pressure in the shock wave at distances of the order of several pitches of the spiral from its plane. With distance from spatial charges of different shape but identical mass, the pressure values in the shock-wave fronts coincide and tend asymptotically to the parameters of a spherical explosion with a significant increase in the duration of a wave packet generated by the spatial charge. Dependences for evaluation of shock-wave pressure amplitudes in the near zone of the explosion are presented. Kluwer Academic/Plenum Publishers, 2000 Pinaev A. aut Kuzavov V. aut Kedrinskii V. aut Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/5(2000-09-01), 836-844 0021-8944 41:5<836 2000 41 10808 https://doi.org/10.1007/BF02468729 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02468729 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pinaev A. aut NATIONALLICENCE 700 1- Kuzavov V. aut NATIONALLICENCE 700 1- Kedrinskii V. aut NATIONALLICENCE 773 0- Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/5(2000-09-01), 836-844 0021-8944 41:5<836 2000 41 10808 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer