SHOCK EFFECTS ON FROZEN MATERIALS EXPLODING WIRE EXPERIMENTS.

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...

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Bibliographic Details
Main Author: Smith,James L.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1970
Subjects:
Soil Mechanics
Snow
Ice and Permafrost
(*SOILS
PERMAFROST)
(*EXPLODING WIRES
SHOCK WAVES)
(*SHOCK WAVES
EQUATIONS OF STATE)
SILT
PRESSURE
VELOCITY
PHASE MEASUREMENT
LOADS(FORCES)
ALASKA
HUGONIOT
FAIRBANKS(ALASKA)
Fairbanks
Ice
permafrost
Alaska
Online Access:http://www.dtic.mil/docs/citations/AD0707924
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0707924
Description
Summary: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)

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