A MODIFIED VIRTUAL ORIGIN MODEL FOR SHAPED CHARGE JET PENETRATION WITH NON-UNIFORM DENSITY DISTRIBUTION | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 4, Volume 16, 16th International Conference on Applied Mechanics and Mechanical Engineering., May 2014, Page 1-21 PDF (2.65 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2014.35477 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| T. Elshenawy | ||||
| Egyptian Armed Forces. | ||||
| Abstract | ||||
| ABSTRACT The penetration of a shaped charge jet is studied in this paper where the jet density deficit is considered. The virtual origin model, which assumes a constant jet density, is modified to include the situation when the jet density deficit causes non-uniform jet density distribution. A relation between the relative density ratio and normalised jet velocity is proposed, based on which an analytical solution of the modified virtual origin model is obtained. The validity of the modified virtual origin model is demonstrated by its largely improved predictions in comparison with experimental and numerical results. It shows that the density deficit term reduces the penetration depth by 19.4%, 12.5% and 12.8% for the un-sintered copper-tungsten powder jet, the solid zirconium jet and the solid copper jet, respectively. | ||||
| Keywords | ||||
| Oil well perforator; hydrodynamic jet penetration; virtual origin; non-uniform density distribution | ||||
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