Compressive fracture features of syntactic foams-microscopic examination

N. Gupta, E. Woldesenbet, Kishore

Research output: Contribution to journalArticle

Abstract

Syntactic foams made by mechanical mixing of polymeric binder and hollow spherical particles are used as core materials in sandwich structured materials. Low density of such materials makes them suitable for weight sensitive applications. The present study correlates various postcompression microscopic observations in syntactic foams to the localized events leading the material to fracture. Depending upon local stress conditions the fracture features of syntactic foam are identified for various modes of fracture such as compressive, shear and tensile. Microscopic observations were also taken at sandwich structures containing syntactic foam as core materials and also at reinforced syntactic foam containing glass fibers. These observations provide conclusive evidences for the fracture features generated under different failure modes. All the microscopic observations were taken using scanning electron microscope in secondary electron mode.

Original languageEnglish (US)
Pages (from-to)3199-3209
Number of pages11
JournalJournal of Materials Science
Volume37
Issue number15
DOIs
StatePublished - Aug 1 2002

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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