Experimental and numerical study of creep properties of aluminum syntactic foams

Olivier Couteau*, David C. Dunand

*Corresponding author for this work

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

Abstract

Aluminum syntactic foams with densities of 1.4-1.6 g/cm3 exhibit exceptionally high compressive creep resistance up to 500°C. Their creep behavior is characterized by a short primary-like regime, followed by a long secondary-like behavior, where the strain rate is minimum, and, at high stresses, a ternary-like behavior. The minimum strain rate varies with stress according to an apparent stress exponent, which takes a value of unity for stresses below 9 MPa, and a value of 14 above 9 MPa. Finite-element modelling provides predictions that are in semi-quantitative agreement with these results.

Original languageEnglish (US)
Title of host publicationSolidification Processing of Metal Matrix Composites - Rohatgi Honorary Symposium
Pages157-163
Number of pages7
StatePublished - May 18 2006
Event2006 TMS Annual Meeting - San Antonio, TX, United States
Duration: Mar 12 2006Mar 16 2006

Publication series

NameTMS Annual Meeting
Volume2006

Other

Other2006 TMS Annual Meeting
CountryUnited States
CitySan Antonio, TX
Period3/12/063/16/06

Keywords

  • Aluminum
  • Creep
  • Finite element modeling
  • Syntactic foam

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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