Effect of matrix hardening on tensile strength of alumina-fiber reinforced aluminum matrix composites

T. Okabe, M. Nishikawa, N. Takeda, H. Sekine

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

This paper examines the stress distribution around a fiber break in alumina-fiber reinforced aluminum matrix (Al2O3/Al) composites using finite element analysis and predicts the tensile strength using tensile failure simulations. In particular, we discuss the effect of the matrix hardening on the tensile failure of the Al2O3/Al composites. First, we clarify the differences in the stress distribution around a fiber break between an elastic-perfect plastic matrix and an elastic-plastic hardening matrix using finite element analysis. Second, the procedure for simulating fiber damage evolution in the Al2O3/Al composites is presented. The simulation incorporates the analytical solution for the axial fiber stress distribution of a broken fiber in the spring element model for the stress analysis of the whole composite. Finally, we conduct Monte Carlo simulations of fiber damage evolution to predict the tensile strength of the Al2O3/Al composites, and discuss the effect of matrix hardening on the tensile strength of the Al2O3/Al composites. Coupled with size-scaling analysis, the simulated results express the size effect on the strength of the composites, which is seen in experimental results.

Original languageEnglish
Title of host publicationProgress in Micromechanical Research of Fracture of Composite Materials
PublisherTrans Tech Publications Ltd
Pages83-99
Number of pages17
ISBN (Print)0878492860, 9780878492862
DOIs
Publication statusPublished - 2010 Jan 1

Publication series

NameKey Engineering Materials
Volume430
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Alumina fiber
  • Aluminum matrix
  • Metal matrix composite
  • Plastic deformation
  • Tensile failure simulation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Okabe, T., Nishikawa, M., Takeda, N., & Sekine, H. (2010). Effect of matrix hardening on tensile strength of alumina-fiber reinforced aluminum matrix composites. In Progress in Micromechanical Research of Fracture of Composite Materials (pp. 83-99). (Key Engineering Materials; Vol. 430). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.430.83