Failure of sandwich beams

E. E. Gdoutos*, Isaac M Daniel

*Corresponding author for this work

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

Abstract

An investigation was conducted on failure of composite sandwich beams under threepoint bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy facings and a variety of core materials, including aluminum honeycomb, PVC closedcell foams, polyurethane foam and balsa wood. The constituent materials were fully characterized and in the case of the core materials, failure envelopes were developed for biaxial states of stress. Deformation and failure mechanisms include core shear failure and compression facing wrinkling. Results were obtained for stress (strain) distributions in the linear and nonlinear/plastic range of the core, critical failure loads due to shear core failure and compression facing wrinkling and their dependence on geometrical dimensions, material parameters and loading conditions.

Original languageEnglish (US)
Title of host publication17th European Conference on Fracture 2008
Subtitle of host publicationMultilevel Approach to Fracture of Materials, Components and Structures
Pages2097-2104
Number of pages8
Volume3
StatePublished - Dec 1 2008
Event17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 - Brno, Czech Republic
Duration: Sep 2 2008Sep 5 2008

Other

Other17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17
Country/TerritoryCzech Republic
CityBrno
Period9/2/089/5/08

Keywords

  • Birefringent coatings
  • Cantilever beams
  • Failure modes
  • Moiré
  • Sandwich beams
  • Three-point bending

ASJC Scopus subject areas

  • Civil and Structural Engineering

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