Poisson's ratio of hollow particle filled composites

R. Poveda, N. Gupta, M. Porfiri

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

Abstract

This study entails the experimental characterization of the Poisson's ratio of hollow particle (microballoon) filled composites, known as syntactic foams. Syntactic foams are lightweight materials used in marine and aerospace structural applications. Such applications require low density and high damage-tolerance, which is achieved in these materials through the presence of hollow particles. Analyses on Poisson's ratio's dependence on syntactic foam composition and microstructure are presently not available. The present work is focused on measuring Poisson's ratio of eight compositions of vinyl ester-glass microballoon syntactic foams and characterizing the effect of volume fraction and microballoon wall thickness on the composites' Poisson's ratio. The specimens are tested under tensile loading conditions, and strain gage rosettes are used to measure strain in the longitudinal and transverse direction. Experimental results are obtained in order to observe the trend in Poisson's ratio values over the entire set of syntactic foams, which correlates with the change in microballoon volume fraction and wall thickness. The experimental data are expected to aid the validation of micromechanics models for syntactic foams.

Original languageEnglish (US)
Title of host publication25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010
Pages1175-1186
Number of pages12
StatePublished - Dec 1 2010
Event25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010 - Dayton, OH, United States
Duration: Sep 20 2010Sep 22 2010

Publication series

Name25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010
Volume2

Other

Other25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010
CountryUnited States
CityDayton, OH
Period9/20/109/22/10

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ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Poveda, R., Gupta, N., & Porfiri, M. (2010). Poisson's ratio of hollow particle filled composites. In 25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010 (pp. 1175-1186). (25th Technical Conference of the American Society for Composites and 14th US-Japan Conference on Composite Materials 2010; Vol. 2).