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Hydrodynamics Computation of Jet Formation and Penetration for Micro-shaped Charges
| Content Provider | Semantic Scholar |
|---|---|
| Author | Stewart, D. Scott Glumac, Nick G. Najjar, Fady M. Szuck, Matthew |
| Copyright Year | 2013 |
| Abstract | Abstract Understanding the hydrodynamic mechanisms in millimeter size shaped charges and smaller, is important for defence- related applications but also for material processing, remote sensing and potential biological applications. Our current focus is to perform a high-fidelity computational study to investigate micro-shaped charge jet formation and penetration depth. We seek to develop an understanding of the limits of our current ability to predict the formation and penetration characteristics of micro-shaped charges by simulation. The LLNL's advanced multiphysics hydrodynamics code, ALE3D, is used as the computational framework. Results obtained for a series of multi-material computations using very small charges and cones will be discussed. The typical thickness of the metal liner is 0.0254 cm (0.01 in) at a stand-off distance of approximately 2.6 Liner Diameters. A complimentary experiment was performed with a very small shaped charge based on a detonator, to generate a representative realization for a simple baseline computational validation/comparison. Various Equation of State (EOS) models have been invoked including JWL, Mie-Gruneisen and γ-law gas with a programmed burn capability. It was found from the experimental data that the penetration depth corresponds to 3.3 Liner Diameter. |
| Starting Page | 39 |
| Ending Page | 47 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.proeng.2013.05.007 |
| Volume Number | 58 |
| Alternate Webpage(s) | https://core.ac.uk/download/pdf/82516736.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.proeng.2013.05.007 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |