Study of shear-stiffened elastomers

Tongfei Tian, Weihua Li, Jie Ding, Gursel Alici, Haiping Du

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

1 Citation (Scopus)

Abstract

Shear thickening fluids, which are usually concentrated colloidal suspensions composed of non-aggregating solid particles suspended in fluids, exhibit a marked increase in viscosity beyond a critical shear rate. This increased viscosity is seen as being both 'field-activated', due to the dependence on shearing rate, as well as reversible. Shear thickening fluids have found good applications as protection materials, such as in liquid body armor, vibration absorber or dampers. This research aims to expand the protection material family by developing a novel solid status shear thickening material, called shear-stiffened elastomers. These new shear-stiffened elastomers were fabricated with the mixture of silicone rubber and silicone oil. A total of four SSE samples were fabricated in this study. Their mechanical and rheological properties under both steady-state and dynamic loading conditions were tested with a parallel-plate. The effects of silicone oil composition and angular frequency were summarized. When raising the angular frequency in dynamic shear test, the storage modulus of conventional silicone rubber shows a small increasing trend with the frequency. However, if silicone oil is selected to be mixed with silicone rubber, the storage modulus increases dramatically when the frequency and strain are both beyond the critical values.

Original languageEnglish
Title of host publicationPowders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media
Pages133-136
Number of pages4
DOIs
Publication statusPublished - 2013
Event7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013 - Sydney, NSW, Australia
Duration: 2013 Jul 82013 Jul 12

Publication series

NameAIP Conference Proceedings
Volume1542
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013
CountryAustralia
CitySydney, NSW
Period13/7/813/7/12

Keywords

  • Shear thickening
  • elastomer
  • shear-stiffened

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Tian, T., Li, W., Ding, J., Alici, G., & Du, H. (2013). Study of shear-stiffened elastomers. In Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media (pp. 133-136). (AIP Conference Proceedings; Vol. 1542). https://doi.org/10.1063/1.4811885