Accession Number : AD0772919
Title : Sensitivity of Material Response Calculations to the Equation of State Model.
Descriptive Note : Final rept. May-Oct 73,
Corporate Author : SYSTEMS SCIENCE AND SOFTWARE LA JOLLA CALIF
Personal Author(s) : Wray,William O.
Report Date : DEC 1973
Pagination or Media Count : 66
Abstract : The report examines the sensitivity of material response calculations to the choice of equation of state model. Three equation of state models, all of which are available as subroutines in the RIP code, are considered: (1) modified PUFF; (2) RIP mixed phase; and (3) GRAY. Each of these models is used to calculate the one-dimensional response of aluminum, beryllium and titanium; this series of calculations is performed for two distinct x-ray sources. The sensitivity of the calculated material response to the choice of equation of state model is characterized in terms of the generated impulse and the peak propagating stress at the time the radiation source is cut off. For the calculations presented in this report, the three equation of state models are in fairly good agreement. (Author)
Descriptors : *Aluminum, *Beryllium, *Equations of state, *Titanium, *Computer programs, Mathematical models, Sensitivity
Subject Categories : Metallurgy and Metallography
Computer Programming and Software
Solid State Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE