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Mechanical Behavior of Metallic Nanolaminate Composite Materials

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Mechanical Behavior of Metallic Nanolaminate Composite Materials. Pate Motter ... D.,Experimental observations of deformation mechanisms in metallic nanolaminates ... – PowerPoint PPT presentation

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Title: Mechanical Behavior of Metallic Nanolaminate Composite Materials


1
Mechanical Behavior of Metallic Nanolaminate
Composite Materials
  • Pate Motter
  • Advisor Dr. Douglas Spearot

2
Project Idea
  • Objective
  • Using computer simulations to study the plastic
    deformation of nanolaminates
  • Nanolaminates
  • Copper-Nickel and Titanium-Aluminum
  • Plastic Deformation
  • Range of stress between elastic and fracture

www.colorado.edu
3
Benefits
  • Nanolaminates are not the sum of their parts
  • Can be fine tuned for specific needs

Misra, A., Hirth, J.P. and Kung, H.
Foecke, T. and van Heerden, D.,Experimental
observations of deformation mechanisms in
metallic nanolaminates
4
Methodology
  • Molecular Dynamics
  • Replaces intricate atom with single point of mass
  • LAMMPS
  • Large-scale Atomic/Molecular Massively Parallel
    Simulator
  • Ensight

lammps.sandia.gov
5
Trillion
  • Statistics
  • 48 Nodes
  • 96 Processors
  • 192 Gb of RAM
  • 336 Gflops

hpc.uark.edu
6
Goals
  • The role interfaces have in the plastic
    deformation of nanolaminates
  • Observing plastic deformation
  • Tests
  • Layer thickness
  • Different amounts of each element
  • Element Position

Spearot, D.E. Inelastic Behavior of Heterophase
Ti-Al and Ti-Al3Ti Nanolaminates
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