DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0838289
Title:
DYNAMIC PROPERTIES OF ROCKS.
Corporate Author:
STANFORD RESEARCH INST MENLO PARK CA POULTER LABS
Report Date:
1968-07-01
Abstract:
High strain rate 1,000,000 to 100,000,000sec release adiabats and the principal Hugoniots of a water-saturated tuff and of fused quartz representative of the primary solid constituent of tuff were measured at stresses below 500 kbar in one-dimensional shock-wave experiments using explosively accelerated flyer plates. Results suggest that both materials undergo shock-induced transformations which are at least partially irreversible on the time scale of the experiments. Between 135 and 470 kbar, fully water-saturated NTS Rainier Mesa tuff initial density 1.9 to 2.1 gcucm, moisture content 13 to 17 was found to support a single, stable, plastic shock. However, anomalously low compressibility along the Hugoniot at stresses between 100 and 400 kbar indicates shock-induced phase transformations in some constituents these are probably allotropic transformations from four- to sixfold coordinated silicate glasses. Author
Descriptive Note:
Final rept. 3 Oct 66-3 Feb 68,
Pages:
0072
Contract Number:
DASA01-67-C-0017
File Size:
0.00MB
