The Effect of a Case on Airblast Measurements. Part I. Friable Inert Cases
Abstract
The effect of casing mass on the airblast from high explosives was examined experimentally by making shock wave pressure-time measurements with piezoelectric gages in the peak pressure range from 80 to 4 psi on spherical pentolite charges encased in ceramic and plaster shells of mass varying in 12 increments from about 2% to 33% of the explosive filling weight. From the lightest to the heaviest case shock peak pressure changed progressively from about 5% higher to 5% lower than that for a bare charge (7% in equivalent weight terms). The yield reduction is 25% less than that predicted by the Fano formula but in good agreement with Fisher's formula based on steel cased data.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 09, 1974
- Accession Number
- AD0781646
Entities
People
- William S. Filler
Organizations
- Naval Ordnance Laboratory