High-power laser shock-induced dynamic fragmentation of iron foils
| Autor: | F. Occelli, A. Diziere, Erik Brambrink, Tommaso Vinci, Guillaume Morard, T. de Rességuier, Huigang Wei, E. Lescoute, Alessandra Benuzzi-Mounaix, François Guyot, Guillaume Fiquet, M. Koenig |
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| Přispěvatelé: | Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Institut Pprime (PPRIME), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Materials science
business.industry Scanning electron microscope PACS : 64.70.dj 91.35.Lj 62.50.Ef 81.30. t [SDU.STU]Sciences of the Universe [physics]/Earth Sciences 02 engineering and technology Electron 021001 nanoscience & nanotechnology Condensed Matter Physics Spall Laser 01 natural sciences Molecular physics Electronic Optical and Magnetic Materials law.invention Interferometry Optics law Free surface 0103 physical sciences Ultimate tensile strength 010306 general physics 0210 nano-technology business Phase diagram |
| Zdroj: | Physical Review B: Condensed Matter and Materials Physics (1998-2015) Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2010, 82, pp.174102. ⟨10.1103/PhysRevB.82.174102⟩ Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 82, pp.174102. ⟨10.1103/PhysRevB.82.174102⟩ |
| ISSN: | 1098-0121 1550-235X |
| DOI: | 10.1103/PhysRevB.82.174102⟩ |
| Popis: | International audience; High-power laser shots were performed on 100- m-thick iron foils, leading to shock loading pressures ranging from about 100 to 300 GPa. Free surface velocities were measured by interferometry. Ejected fragments recovered on polycarbonate shields were analyzed using scanning electron microscopy. Particle-size distributions were extracted from backscattered electrons images. These distributions, as well as the morphologies of fragments and the values of the tensile strength, change abruptly with increasing laser intensity. One-dimensional hydrodynamic simulations were performed in order to interpret these evolutions. By comparison with recent static measurements and calculations of the iron phase diagram, the BLF Bushman, Lomonosov and Fortov equation of state was inferred to provide more realistic predictions than SESAME 2150 at the highest pressures investigated. The calculated decompression paths show that spall fracturation took place in the solid state, either in or in iron, this phase difference being the simplest hypothesis for explaining the changes observed in the fragmentation behavior. |
| Databáze: | OpenAIRE |
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