Numerical Simulations of Laser-Induced Shock Experiments on Graphite

The development of particle accelerators with ever increasing energies is raising the standards of the structures which could interact with the particle beams. These structures could be subjected to strong shockwaves in accidental scenarios. In order to test materials in such conditions, one of the...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Alberto Morena, Lorenzo Peroni
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	finite element numerical simulation laser–matter interaction laser-induced shockwave high-energy impact graphite beam intercepting devices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/886b3f1db5a443eda65af249438a5933
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:886b3f1db5a443eda65af249438a5933
record_format	dspace
spelling	oai:doaj.org-article:886b3f1db5a443eda65af249438a59332021-11-25T18:16:11ZNumerical Simulations of Laser-Induced Shock Experiments on Graphite10.3390/ma142270791996-1944https://doaj.org/article/886b3f1db5a443eda65af249438a59332021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7079https://doaj.org/toc/1996-1944The development of particle accelerators with ever increasing energies is raising the standards of the structures which could interact with the particle beams. These structures could be subjected to strong shockwaves in accidental scenarios. In order to test materials in such conditions, one of the most promising techniques is the impact with high-power lasers. In view of the setting up of future experimental campaigns within the Petawatt High-Energy Laser for Heavy Ion Experiments (PHELIX), the present work aims at the development of a numerical approach for the simulation of graphite impacted by laser beams. In particular, the focus is on the spallation damage caused by shockwave reflection: a sufficiently intense laser beam could ablate the matter until plasma conditions, hence producing a shockwave which could travel inside the material and reach a free surface. A numerical model to properly describe the spall fragmentation of graphite has been calibrated on the basis of literature-available experimental data. The numerical approach is a ‘two-step’ procedure: the first step is the definition of the laser–matter interaction and the second one concerns the description of the shockwave evolution into matter. The simulations satisfactorily reproduce the dynamic response of graphite impacted by two different laser sources with various intensities, despite the difficulties of characterising a phenomenon which is extremely fast and chaotic.Alberto MorenaLorenzo PeroniMDPI AGarticlefinite element numerical simulationlaser–matter interactionlaser-induced shockwavehigh-energy impactgraphitebeam intercepting devicesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7079, p 7079 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	finite element numerical simulation laser–matter interaction laser-induced shockwave high-energy impact graphite beam intercepting devices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	finite element numerical simulation laser–matter interaction laser-induced shockwave high-energy impact graphite beam intercepting devices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Alberto Morena Lorenzo Peroni Numerical Simulations of Laser-Induced Shock Experiments on Graphite
description	The development of particle accelerators with ever increasing energies is raising the standards of the structures which could interact with the particle beams. These structures could be subjected to strong shockwaves in accidental scenarios. In order to test materials in such conditions, one of the most promising techniques is the impact with high-power lasers. In view of the setting up of future experimental campaigns within the Petawatt High-Energy Laser for Heavy Ion Experiments (PHELIX), the present work aims at the development of a numerical approach for the simulation of graphite impacted by laser beams. In particular, the focus is on the spallation damage caused by shockwave reflection: a sufficiently intense laser beam could ablate the matter until plasma conditions, hence producing a shockwave which could travel inside the material and reach a free surface. A numerical model to properly describe the spall fragmentation of graphite has been calibrated on the basis of literature-available experimental data. The numerical approach is a ‘two-step’ procedure: the first step is the definition of the laser–matter interaction and the second one concerns the description of the shockwave evolution into matter. The simulations satisfactorily reproduce the dynamic response of graphite impacted by two different laser sources with various intensities, despite the difficulties of characterising a phenomenon which is extremely fast and chaotic.
format	article
author	Alberto Morena Lorenzo Peroni
author_facet	Alberto Morena Lorenzo Peroni
author_sort	Alberto Morena
title	Numerical Simulations of Laser-Induced Shock Experiments on Graphite
title_short	Numerical Simulations of Laser-Induced Shock Experiments on Graphite
title_full	Numerical Simulations of Laser-Induced Shock Experiments on Graphite
title_fullStr	Numerical Simulations of Laser-Induced Shock Experiments on Graphite
title_full_unstemmed	Numerical Simulations of Laser-Induced Shock Experiments on Graphite
title_sort	numerical simulations of laser-induced shock experiments on graphite
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/886b3f1db5a443eda65af249438a5933
work_keys_str_mv	AT albertomorena numericalsimulationsoflaserinducedshockexperimentsongraphite AT lorenzoperoni numericalsimulationsoflaserinducedshockexperimentsongraphite
_version_	1718411393374355456

Numerical Simulations of Laser-Induced Shock Experiments on Graphite

Ejemplares similares