Dynamic quasi-isentropic loading of tungsten

Conference · Sat Dec 31 23:00:00 EST 1988

DOI:https://doi.org/10.1080/08957959008246275· OSTI ID:5975012

Chhabildas, L. C.; Asay, J. R.; Barker, L. M.

Experiments have been performed on smooth bore guns to obtain quasi-isentropic compression in tungsten to stresses approaching 250 GPa. Quasi-isentropic loading was introduced in the material either by using graded density or layered impactors. Results of these experiments indicate that the quasi-isentrope lies above the Hugoniot up to /approximately/14 GPa, contrary to initial expectations. These results suggest that the dynamic yield strength of the material is higher for the relatively slower rates of isentropic loading. 4 refs., 2 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5975012
• Report Number(s): SAND-89-0978C; CONF-890798-2; ON: DE89013924
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
COMPRESSION
ELEMENTS
ISENTROPIC PROCESSES
MECHANICAL PROPERTIES
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
PRESSURE EFFECTS
STRESSES
THERMODYNAMICS
TRANSITION ELEMENTS
TUNGSTEN
VERY HIGH PRESSURE
YIELD STRENGTH