High-energy air shock study in a grout pipe

Conference · Sat Jun 01 04:00:00 EDT 1985

OSTI ID:5413180

Glenn, H D; Keough, D D; Kratz, H R; Duganne, D A; Ruffner, D J; Baum, D

A modified Voitenko compressor generated a 43 mm/..mu..s air shock in a 20-mm-i.d. 3.0 m. long pipe containing ambient atmospheric air. The first 0.15 m of outlet pipe was constructed of steel and the last 2.85 m of DR-1 grout. Between 0.10- and 2.5-m from the diaphragm the velocity of the shock front attenuated from 43- to 4.5-mm/..mu..s and peak pressure from 2.28- to 0.024 GPa. The rate of wall expansion uniformly decreases and asymptotically approaches an apparent final radius between 60-100 ..mu..s behind the shock front. Plasma flow measurements indicated a flow velocity of 27.4 mm/..mu..s and a magnetic Reynolds number >60. Wall expansion was <1 mm at the end of the pipe indicating significant attenuation of the shock front between 2.5 m and 3.0 m. 13 refs., 13 figs., 1 tab.

• Research Organization: Lawrence Livermore National Lab., CA (USA); SRI International, Menlo Park, CA (USA); Artec Associates, Inc., Hayward, CA (USA); Systems, Science and Software, La Jolla, CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5413180
• Report Number(s): UCRL-91625; CONF-850767-1; ON: DE85014805
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
&amp; National Defense-- Chemical Explosions &amp; Explosives
AIR
ALLOYS
BLAST EFFECTS
COMPRESSORS
DIAGNOSTIC TECHNIQUES
EXPLOSIONS
FLUIDS
GASES
GROUTING
IRON ALLOYS
IRON BASE ALLOYS
PIPES
PRESSURE MEASUREMENT
SHOCK WAVES
SIMULATION
STEELS
UNDERGROUND EXPLOSIONS
WAVE PROPAGATION