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Spallation as an effect of laser-induced shock waves |
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| Authors: | Irith Gilath David Salzmann Meir Givon Moshe Dariel Levi Kornblit Tuvia Bar-Noy |
| Affiliation: | (1) Plasma Physics Department, Soreq Nuclear Research Centre, 70600 Yavne, Israel;(2) Material Science Department Ben Gurion University, Beer Sheva, Israel;(3) Physics Department, Nuclear Research Centre, Negev, POB 9001, 84190 Beer Sheva, Israel |
| Abstract: | Spallation resulting from laser-driven shock waves in metallic foils was investigated and the various stages of material failure were identified. The very high strain rate (107sec–1 ) characteristic of these experiments sets our results apart from those obtained by high explosives or hypervelocity impact. Numerical hydrodynamic simulations of the phenomenon were developed and are shown to be in qualitative agreement with the experimental results. |
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