Size-Dependent Strengthening Of Particle-Reinforced Aluminum Matrix Composites

Abstract

The finite-element-based microstructural modeling technique developed by Suh et al. (Suh, Y. S.; Joshi, S. P.; Ramesh, K. T. Acta. Mater. 2009, 57, 5848) was reviewed and used for studying the different responses between isotropic and anisotropic aluminum matrix with varying particle sizes. The results show that the overall response of the material was identical when the matrix material was changed from isotropic-elastic/plastic aluminum to anisotropic-elastic/isotropic-plastic aluminum, especially for the 5% volume fraction. However, the anisotropic-elastic/isotropic-plastic aluminum exhibited a lower elastic modulus than that of the isotropic-elastic/plastic-aluminum. Also, the flow stresses were lower for anisotropic-elastic/isotropicplastic aluminum for the 20% volume fraction.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2011
Accession Number
ADA550717

Entities

People

  • Cyril L. Williams

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Elements
  • Equations
  • Failure Mode And Effect Analysis
  • Materials
  • Mechanics
  • Metal Matrix Composites
  • Metals
  • Micromechanics
  • Military Research
  • Modulus Of Elasticity
  • Particle Size
  • Particles
  • Silicon Carbide
  • Spatial Distribution
  • Stress Strain Relations
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Snow Cover Descriptors for Reptiles and Their Illustrations.