Accession Number : AD0707924

Title :   SHOCK EFFECTS ON FROZEN MATERIALS EXPLODING WIRE EXPERIMENTS.

Descriptive Note : Research rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Smith,James L.

Report Date : JUN 1970

Pagination or Media Count : 17

Abstract : Hugoniot curves were generated from simultaneous measurements of shock and free-surface velocities, obtained from samples of frozen Fairbanks (Fox) silt, using the exploding wire technique. The abrupt change in slope of the (U sub s) - (U sub p) Hugoniot is indicative of a phase change. The shape of the P-V Hugoniot suggests that the transformation begins immediately but does not go to completion. This means that, although the pressure lies slightly above the Rayleigh line through the mixed phase region, the slope does not increase as rapidly as it would if the material had stayed in the initial phase. (Author)

Descriptors :   (*SOILS, PERMAFROST), (*EXPLODING WIRES, SHOCK WAVES), (*SHOCK WAVES, EQUATIONS OF STATE), SILT, PRESSURE, VELOCITY, PHASE MEASUREMENT, LOADS(FORCES), ALASKA

Subject Categories : Soil Mechanics
      Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE