Accession Number:

ADA066108

Title:

Stability and Amplification of Shock Waves.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND DOVER NJ LARGE CALIBER WEAPON SYSTEMS LAB

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

41.0

Abstract:

The concept of shock wave instability leading to shock pressure amplification is investigated with respect to materials properties and thermodynamic equilibrium. It is concluded that a materials property requirement negative macroscopic Grueneisen parameter associated with single-pass pressure amplification is inconsistent with the amplifying medium being in a state of thermodynamic equilibrium. A resulting interpretation, for inert media, is that such amplifying states are metastable and only to be found in materials which are in the process of under-going a phase transition. As a consequence, it is argued that practical shock pulse pressure amplification is not a possibility. Author

Subject Categories:

  • Ammunition and Explosives
  • Mechanics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE