Failure mechanisms in composite reinforced aluminum foam sandwich structures

G. Reyes-Villanueva, W. J. Cantwell

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Sandwich structures consisting of thermoplastic composite skins and an aluminum foam core have been tested under quasi-static and dynamic loading conditions. Static testing was performed on sandwich beams using the three-point bend (3PB) test geometry. Failure in these structures occurred in a number of modes: indentation, core yielding and face wrinkling. The low velocity impact response of these structures was evaluated using an instrumented dropping weight impact tower and modeled using an energy balance approach. Results have shown that these systems exhibit excellent energy absorbing characteristics. Thermoplastic composite reinforced aluminum foam sandwich structures absorb much of the impact energy into the bending and contact effects.

Original languageBritish English
Pages (from-to)3604-3614
Number of pages11
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume49
StatePublished - 2004
Event49th International SAMPE Symposium and Exhibition: Materials and Processing Technology - 60 Years of SAMPE Progress, SAMPE 2004 - Long Beach, CA, United States
Duration: 16 May 200420 May 2004

Keywords

  • Failure Mechanisms
  • Foams
  • Hybrids
  • Metals/Alloys
  • Sandwich Construction
  • Thermoplastic Composites

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