Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Shock Wave Propagation in Nano-Structured Materials For Fusion Applications
Year:2009
Research Areas
  • Naval engineering
Information
Abstract
A particular challenge in material sciences is the design and synthesis of molecular structures with desired physical properties. Atomistic simulations using MD techniques play a crucial role in this task. Here we present, at the atomic scale, first results and intended general methodology in the study of wave propagation and response to high shock loading for different materials. We have studied different materials ranging from single crystal structures to more complex nanostructures (nanocrystals). We report non-equilibrium Molecular Dynamics simulations, using empirical MEAM potentials, that are able to cover similar times and length scales as laser-shock experiments. Our results try to fill the present gap providing atomic information in detail for the mechanisms of lattice deformation, plasticity, dislocations and relaxation in the response to wave propagation. New nanostructured materials, such as nanocrystals, and porous metals (metallic foams), are the perfect candidates to take part in different critical components in a Fusion reactor. For instance, the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory will require polycrystalline ignition targets. On the other hand, metallic foams appear as a possible alternative in current designs for targets in the HiPER initiative. We are not only trying to evaluate their behavior under shock loading conditions but also discuss their suitability as future compounds in the present and future scenario of Nuclear Fusion Technology.
International
Si
Congress
ICFRM. 14 International Conference in Fusion Reactor Materials. Sapporo (Japan) 6-11th September. 2009
960
Place
Sapporo (Japan)
Reviewers
Si
ISBN/ISSN
0000000000000
Start Date
06/09/2009
End Date
11/09/2009
From page
222
To page
222
ICFRM-14 proc. Bajo publicacion
Participants
  • Autor: Santiago Cuesta Lopez (UPM)
  • Autor: Jose Manuel Perlado Martin (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Nuclear
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