Fracture toughness characterizations of syntactic foams

M. A. Wahab, V. B. Gorugantu, Nikhil Gupta

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

Abstract

Syntactic foams are hollow particle filled polymeric materials. In the present study, syntactic foams are fabricated by varying the volume fraction and density of microballoons. Three-point bend tests are conducted on foam samples to determine their fracture toughness. The results show that the syntactic foam samples failed in a brittle manner under tensile mode at lower microballoon volume fractions. At higher volume fractions the samples showed failure in both compressive and tensile regions. It is found that fracture toughness decreases with increase of the microballoon volume fraction and the fracture toughness increases with the increase of microballoons density. Extensive scanning electron microscopic observations are taken to determine the fracture features for all types of syntactic foams.

Original languageEnglish (US)
Title of host publication20th Technical Conference of the American Society for Composites 2005
Pages57-66
Number of pages10
StatePublished - 2005
Event20th Technical Conference of the American Society for Composites 2005 - Philadelphia, PA, United States
Duration: Sep 7 2005Sep 9 2005

Publication series

Name20th Technical Conference of the American Society for Composites 2005
Volume1

Other

Other20th Technical Conference of the American Society for Composites 2005
CountryUnited States
CityPhiladelphia, PA
Period9/7/059/9/05

ASJC Scopus subject areas

  • Ceramics and Composites

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