The Strengthening of Energetic Materials Under Pressure
Abstract
The mechanical properties of composite plastic bonded explosives are being studied as a function of hydrostatic confining pressure. The flow stress and the modulus obtained in simple compression are both found to increase with increasing confining pressure. Thus, these materials become stronger and stiffer with increasing pressure. The sensitivity to pressure, however, decreases with increasing pressure. The failure process also changes with pressure. At atmospheric pressure failure is primarily due to crack processes while at elevated pressures failure is due primarily to plastic flow. Several mechanisms which may account for the pressure dependencies of the flow stress, the modulus and the failure processes are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2004
- Accession Number
- ADA433225
Entities
People
- Brett Reddingius
- Donald A. Wiegand
Organizations
- United States Army Armament Research, Development and Engineering Center