Analytical solution for pin-supported metal foam core sandwich beam with local denting

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Abstract

Structural response of pin-supported metallic foam core sandwich beam is theoretically investigated. Effects of local denting and core strength and interaction of bending and axial stretching are considered in analysis. A rigid-plastic beam-on-foundation is employed to consider local denting deformation. The local denting continues during the overall deformation of sandwich beam. It is shown that upon neglecting the effect of local denting, the load-carrying capacity and energy absorption of sandwich beam may be overestimated, and the normal axial (membrane) force associated with plastic stretching substantially stiffens the sandwich beams.

Original languageEnglish
Title of host publicationFracture and Strength of Solids VII
PublisherTrans Tech Publications Ltd
Pages639-644
Number of pages6
ISBN (Print)9780878492107
DOIs
StatePublished - 2011

Publication series

NameKey Engineering Materials
Volume462-463
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Energy absorption
  • Indentation
  • Large deflection
  • Metal foam
  • Sandwich beam

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