A Framework for Multiscale Modeling of Deformation in Crystalline Solids

Abstract

A simulation framework was developed for studying the deformation behavior of metallic materials. Atomistic simulations were employed to study dislocation nucleation during nanoindentation and to correlate dislocation behavior and overall material response in thin-film crystals. An instrumented indenter was acquired to study the indentation behavior of metallic composites. Experimental and continuum- based modeling works on indentation of discontinuously reinforced metal matrix composites were also conducted. Detailed microscopic features were analyzed, which aided in our fundamental understanding of plastic deformation in these materials.

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Document Details

Document Type
Technical Report
Publication Date
Feb 20, 2006
Accession Number
ADA444522

Entities

People

  • Tariq Khraishi
  • Yu-lin Shen

Organizations

  • University of New Mexico

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Composite Materials
  • Computational Science
  • Computer Simulations
  • Dislocations
  • Films
  • Finite Element Analysis
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Metal Matrix Composites
  • Multiscale Modeling
  • Residual Stress
  • Silicon Carbide
  • Simulations
  • Thin Films
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Computational Fluid Dynamics (CFD)
  • Materials Science and Engineering.
  • Reinforced Composite Materials