Numerical Analyses of Penetration Dynamics in Support of Investigations of Scaling Relations for Earth Penetrators.
Abstract
Two finite-difference WAVE-L code solutions of projectile penetration have been conducted to assess the effect of projectile sectional pressure (W/A) on penetration dynamics. The results are being used in an investigation of penetration scaling relations underway at the Waterways Experiment Station. The penetrator problems consisted of the normal impacts of rigid-body projectiles into sand targets at a velocity of 200 ft/sec. The projectiles were 6 in. in diameter with a 6-in. long, ogive nose (CRH = 1.25). Two penetrator weights were selected, 141.4 lb (Case 1) and 424.1 lb (Case 2), to give projectile sectional pressures of 5 psi for Case 1 and 15 psi for Case 2. Detailed results of the numerical solutions, including time histories of the penetration dynamics variables, force loading distributions, and field plots of the target response, are presented in the report.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1977
- Accession Number
- ADA048644
Entities
People
- Christopher C. Fulton
- Mark H. Wagner