Advertisement

Micromechanics effects in creep metal-matrix composites

  • Avner Friedman
Part of the The IMA Volumes in Mathematics and its Applications book series (IMA, volume 83)

Abstract

When placed under tensile loading, metals tend to creep, i.e., to elongate slowly over times of order hours to days. The creep rate is proportional to σ n where σ is the applied stress andn istypically in the range 2< n < 15. Ifnon-creeping, reinforcing particles are added to the metal, the creep rate of the composite is substantially reduced. On December 2, 1994 L. Craig Davis from Ford Motor Company described his recent work with J.E. Allison [1] in which the creep of metal-matrix composites was analyzed by finite element techniques. He posed, as an open problem, establishing by mathematical analysis the principal results of his calculations.

Keywords

Creep Rate Titanium Carbide Steady State Creep Rate Creep Strain Rate Local Displacement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    L.C. Davis and J.E. AllisonMicromechanicseffectsin creepof met al-matrixcompositesMetallergical Transactions, to appear.Google Scholar
  2. [2]
    A. Mendelson, Plasticity:Theory and ApplicationMacMillan, New York (1968).Google Scholar
  3. [3]
    G. Bao, J.W. Hutchinson and R.M. McMeekingParticle reinforcement onductile matrices against plasticflow and creepActa Metallurgica et Materialia, 3a (1991), 1871–1882.CrossRefGoogle Scholar
  4. [4]
    T.L. Dragone and W.D. NixGeometric factors affectingtheinternal stress distribution and high temperature creep rate of discontinuous fiber reinforcedmetals, Acta Metallurgica et Materialia, 38 (1990), 1941–1953.CrossRefGoogle Scholar
  5. [5]
    A. Braides, V. Chicidō Piat and A. DefrancheschiHomogenizationof almostperiodic monotoneoperators, Annals Institute Henri Poincaré, 9 (1992), 399–432.MATHGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Avner Friedman
    • 1
  1. 1.Institute for Mathematics and its ApplicationsUniversity of MinnesotaMinneapolisUSA

Personalised recommendations