Modeling of particle reinforced metal matrix composites using actual microstructures

Nikhilesh Chawla, K. K. Chawla

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

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 real particle reinforced composite materials. We show that 2D models do capture the anisotropy in deformation behavior induced by anisotropy in particle distribution. 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 models only a two-dimensional section of the real, three-dimensional object. For a realistic comparison to actual experimental values, 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 publicationInternational SAMPE Technical Conference
StatePublished - 2006
Event38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering - Dallas, TX, United States
Duration: Nov 6 2006Nov 9 2006

Other

Other38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering
CountryUnited States
CityDallas, TX
Period11/6/0611/9/06

Fingerprint

Metals
Microstructure
Composite materials
Anisotropy
Particle reinforced composites
Finite element method
Chemical elements
Aspect ratio
Numerical models
Tensile strength
Visualization
Elastic moduli

ASJC Scopus subject areas

  • Building and Construction
  • Chemical Engineering(all)
  • Polymers and Plastics
  • Chemical Engineering (miscellaneous)

Cite this

Chawla, N., & Chawla, K. K. (2006). Modeling of particle reinforced metal matrix composites using actual microstructures. In International SAMPE Technical Conference

Modeling of particle reinforced metal matrix composites using actual microstructures. / Chawla, Nikhilesh; Chawla, K. K.

International SAMPE Technical Conference. 2006.

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

Chawla, N & Chawla, KK 2006, Modeling of particle reinforced metal matrix composites using actual microstructures. in International SAMPE Technical Conference. 38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering, Dallas, TX, United States, 11/6/06.
Chawla N, Chawla KK. Modeling of particle reinforced metal matrix composites using actual microstructures. In International SAMPE Technical Conference. 2006
Chawla, Nikhilesh ; Chawla, K. K. / Modeling of particle reinforced metal matrix composites using actual microstructures. International SAMPE Technical Conference. 2006.
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