Physics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.1899j&link_type=abstract
Journal of Geophysical Research, vol. 87, Mar. 10, 1982, p. 1899-1902.
Physics
1
Compression Waves, Lunar Soil, Propagation Velocity, Regolith, Soil Mechanics, Apollo 15 Flight, Axial Stress, Environment Simulation, High Vacuum, Ultrasonic Radiation, Moon, Regolith, Samples, Lunar, Compression, Waves, Velocity, Soils, Simulations, Apollo 15, 15301, Stress, Compaction, Temperature, Data, Experiments, Techniques, Equipment, Depth, Crust, Composition
Scientific paper
Ultrasonic compressional wave velocities have been measured in the laboratory for an Apollo 15 soil sample (15301, 38) under very low uniaxial stress and high vacuum conditions. The velocities measured range from 125 to 522 m/sec. The velocities of the soil are stress dependent and are strongly affected by compaction history. Hertzian contact theory does not appear to fit the data adequately for the pressure range of the experiment. Moderate increases in temperature do not have a significant effect on the compressional wave velocities.
Dorman James
Frisillo A. L.
Johnson Michael D.
Latham Gary V.
Strangway D.
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