Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/20792| Title: | Numerical analyses of penetration dynamics in support of investigations of scaling relations for earth penetrators |
| Authors: | California Research and Technology, Inc. Wagner, Mark H. Fulton, Christopher C. |
| Keywords: | Earth penetrators Finite difference method Finite element method Projectile penetration Numerical analysis Mathematical analysis Soil penetration Penetration WAVE-L Computer programs |
| Publisher: | Soils and Pavements Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Description: | Miscellaneous Paper 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. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/20792 |
| Appears in Collections: | Miscellaneous Paper |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| MP-S-77-23.pdf | 5.47 MB | Adobe PDF |  View/Open |