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LULI2000 - Plasma Laser produced Very High Velocity Impact. New Interaction regime, new diagnostic, for innovative debris shielding in Bulk Metallic Glass (L. Berthe)

This proposal concerns the development of using of high-energy/ns laser-produce shocks to study material under Very High Velocity Impact. It focusses on the shock plasma laser – Very High Velocity Impact equivalence, the development of new diagnostics and the manufacturing of new generation Bulk Metallic Glasses for space craft debris protection. The experimental set-up couples High speed 3-D laser imaging, Heterodyne Velocimetry, line VISAR and shadowgraphy. New BMG materials will be manufactured to test various compositions. Cross analysis between in-situ diagnostics and Post-shock material characterization will allow the first comprehensive approach on the design of material for space debris shielding. We also compare results with a predictive code simulating material behavior under VHVI. The results will demonstrate the interest of kJ/ns laser as unique facility to study material under extreme impact velocities that are the current challenges for aeronautical and spatial applications. This proposal has been prepared by preliminary studies on low-energy laser facilities (GCLT, Hephaistos and Elfie) lead after first experiment on LULI2000 in 2013. This proposal is subject of three PhD theses (CEA, DGA and Région Bretagne) and is a part of ANR GLASS. Diagnostics will be brought and performed by IPR, PIMM, CEA and LULI. Materials will be manufactured and analyzed by IPR.

LULI2000 - S45-46 / 2017