SIMULATION OF AIR-BLAST-INDUCED GROUND MOTIONS (PHASE 2)
Abstract
Results from the Phase 2, Long-Duration High Explosive Simulation Technique (LDHEST) experiment are presented. This experiment simulates the airblast-induced ground motions from a large-yield nuclear weapon over a plan area 96 feet by 150 feet. A specially designed matrix of primacord was utilized to produce the desired explosion in a confined volume of air. An overburden, or mass of material, was placed over the explosion to provide a reaction force to shape the resulting wave pulse and to provide the required long durations. The experiment produced an air pressure pulse which had a peak overpressure of 312 psi, a time to one-half peak pressure of 18.2 msec, and a total duration of 170 msec. The shock front traveled at an average velocity of 5,120 ft/sec. On the basis of these results, recommendations are made for future simulation experiments. The measured earth free-field motions and stresses are compared with theoretical calculations, and the validity of the technique for simulating the desired nuclear environment is established.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0613674
Entities
People
- Gerald G. Leigh
- Gerald P. D'arcy
- Harry E. Auld
Organizations
- Air Force Research Laboratory