Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite
We present the results of an experimental campaign conducted on the LULI2000 laser facility. Semi-infinite targets of a commercial grade of porous graphite were submitted to high-power laser irradiation inorder to generate craters. A 15 ns pulse duration was used along with a focal spot diameter of...
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2018-01-01
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Series: | EPJ Web of Conferences |
Online Access: | https://doi.org/10.1051/epjconf/201818301060 |
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doaj-399921750d3c4f529c728e3f7d7fa5212021-08-02T09:46:46ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011830106010.1051/epjconf/201818301060epjconf_dymat2018_01060Numerical Simulations of Laser-Driven Cratering Experiments into Porous GraphiteAubert BertrandHebert DavidRullier Jean-LucChevalier Jean-MarcBerthe LaurentBrambrink ErikLescoute EmilienVideau LaurentFranzkowiak Jean-EloiJodar BenjaminLoison DidierNivard MarietteWe present the results of an experimental campaign conducted on the LULI2000 laser facility. Semi-infinite targets of a commercial grade of porous graphite were submitted to high-power laser irradiation inorder to generate craters. A 15 ns pulse duration was used along with a focal spot diameter of 900 µm to deliver energies up to 750 J. Numerical simulations of these shots have been performed following a specificmethodology which can be divided in three steps. Firstly, the mechanical loading induced by the laser iscalibrated by simulating the same shot on a thin aluminum target of which free surface velocity is measured byPDV and line-VISAR. Secondly, the same shot is performed on a thin graphite target to validate the materialmodel of graphite. Thirdly, the craterization shot on semi-infinite target is simulated. Numerical results arecompared to experimental measurements of craters obtained using an interferometric profilometer.https://doi.org/10.1051/epjconf/201818301060 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aubert Bertrand Hebert David Rullier Jean-Luc Chevalier Jean-Marc Berthe Laurent Brambrink Erik Lescoute Emilien Videau Laurent Franzkowiak Jean-Eloi Jodar Benjamin Loison Didier Nivard Mariette |
spellingShingle |
Aubert Bertrand Hebert David Rullier Jean-Luc Chevalier Jean-Marc Berthe Laurent Brambrink Erik Lescoute Emilien Videau Laurent Franzkowiak Jean-Eloi Jodar Benjamin Loison Didier Nivard Mariette Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite EPJ Web of Conferences |
author_facet |
Aubert Bertrand Hebert David Rullier Jean-Luc Chevalier Jean-Marc Berthe Laurent Brambrink Erik Lescoute Emilien Videau Laurent Franzkowiak Jean-Eloi Jodar Benjamin Loison Didier Nivard Mariette |
author_sort |
Aubert Bertrand |
title |
Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite |
title_short |
Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite |
title_full |
Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite |
title_fullStr |
Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite |
title_full_unstemmed |
Numerical Simulations of Laser-Driven Cratering Experiments into Porous Graphite |
title_sort |
numerical simulations of laser-driven cratering experiments into porous graphite |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2018-01-01 |
description |
We present the results of an experimental campaign conducted on the LULI2000 laser facility. Semi-infinite targets of a commercial grade of porous graphite were submitted to high-power laser irradiation inorder to generate craters. A 15 ns pulse duration was used along with a focal spot diameter of 900 µm to deliver energies up to 750 J. Numerical simulations of these shots have been performed following a specificmethodology which can be divided in three steps. Firstly, the mechanical loading induced by the laser iscalibrated by simulating the same shot on a thin aluminum target of which free surface velocity is measured byPDV and line-VISAR. Secondly, the same shot is performed on a thin graphite target to validate the materialmodel of graphite. Thirdly, the craterization shot on semi-infinite target is simulated. Numerical results arecompared to experimental measurements of craters obtained using an interferometric profilometer. |
url |
https://doi.org/10.1051/epjconf/201818301060 |
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