Microstructure-based finite element modeling of particle reinforced metal matrix composites

Nikhilesh Chawla, K. K. Chawla

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Finite element modeling and analysis have been used to analyze the behavior of particle reinforced metal matrix composites for a long while. Up until recently, most of this work involved treating particle as a sphere embedded in a metallic matrix. It was soon realized that these models did not account for the microstructural factors that influence the mechanical behavior of the composite material. We provide examples of the use of two-dimensional (2D) and three-dimensional (3D) microstructure-based FEM models that accurately predict the properties of particle reinforced composite materials. We show that 2D models do capture the anisotropy in deformation behavior induced by anisotropy in particle orientation. The experimentally observed dependence of Young's modulus and tensile strength is confirmed by the 2D microstructure-based numerical model. The two-dimensional modeling, however, has its limitations because one only models a two-dimensional section of the real, threedimensional object. For a realistic comparison to actual experimental results, one must resort to three-dimensional modeling. A serial sectioning process can be used to reproduce and visualize the 3D microstructure of particle reinforced metal matrix composites. The 3D microstructure-based FEM accurately represents the alignment, aspect ratio, and distribution of the particles; and allows visualization and simulation of the material behavior.

Original languageEnglish (US)
Title of host publicationICCM International Conferences on Composite Materials
StatePublished - 2007
Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
Duration: Jul 8 2007Jul 13 2007

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
CountryJapan
CityKyoto
Period7/8/077/13/07

Keywords

  • Finite element modeling
  • Metal matrix composite
  • Microstructure
  • Residual stress
  • Young's modulus

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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  • Cite this

    Chawla, N., & Chawla, K. K. (2007). Microstructure-based finite element modeling of particle reinforced metal matrix composites. In ICCM International Conferences on Composite Materials