Accession Number:

AD0650741

Title:

ATTENUATION OF PEAKED AIR SHOCK WAVES IN SMOOTH TUNNELS

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1966-11-01

Pagination or Media Count:

81.0

Abstract:

The attenuation of shock-front pressure for peaked air shock waves was measured along straight smooth-wall test sections of 1-, 2-, and 4-inch inside diameter shock tubes over travel distances up to 520-tunnel diameters. Shock overpressure between 50 and 450 psi for an ambient pressure of 1 atmosphere were produced by the use of helium or by burning M-9 propellant in the driver section of shock tubes. The lengths of the shock tube driver sections were changed to vary the shape of the shock waveform which caused the shock-front pressure to attenuate differently with distance. Pressure-time records are shown from piezoelectric pressure gages placed at ten test positions along the shock tube.

Subject Categories:

  • Structural Engineering and Building Technology
  • Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE