Accession Number:

ADA088152

Title:

Shock Compression of Tantalum.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL SURFACE WEAPONS CENTER DAHLGREN VA

Personal Author(s):

Report Date:

1980-06-01

Pagination or Media Count:

25.0

Abstract:

The free-surface velocity of a shock-loaded 3.73-mm-thick tantalum disk has been measured with a capacitor gauge. Stress reverberations were produced in the tantalum disk by impacting it with a 2.65-mm-thick alpha titanium disk at a velocity of 0.111 kms in a gas gun. An initial shock compressive stress slightly larger than the measured 2.1-GPa Hugoniot elastic limit was produced in the tantalum. The shape of the free-surface-velocity profile suggested that spall fracture did not occur in the specimen disk at this stress level. This result was verified by examining the recovered and sectioned disk. Author

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE