Stability and Amplification of Shock Waves.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1978
- Accession Number
- ADA066108
Entities
People
- Paul Harris
Organizations
- United States Army Armament Research, Development and Engineering Center