Accession Number : AD0759086

Title :   JOHNIE BOY Crater Calculations.

Descriptive Note : Final rept. Oct 71-Oct 72,

Corporate Author : PHYSICS INTERNATIONAL CO SAN LEANDRO CA

Personal Author(s) : Maxwell, Donald E.

Report Date : APR 1973

Pagination or Media Count : 74

Abstract : A two dimensional plastic-elastic computation of the JOHNIE BOY cratering event was performed. The material model was constructed from average alluvium properties at other NTS sites. Advanced computer techniques made it possible to compute to 0.8 second of real time at a modest expenditure of computer hours. The computed crater was slightly larger than that of the experiment. The computed ground motion, however, failed to predict the rebound feature recorded by the experimental velocity gauges. (Author)

Descriptors :   *UNDERGROUND EXPLOSIONS, *CRATERING, SOIL MECHANICS, NUCLEAR EXPLOSIONS, DIFFERENCE EQUATIONS, STRESSES, CURVE FITTING, GRAPHICS, COMPUTER PROGRAMMING, SEISMIC WAVES.

Subject Categories : Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE