Quasi-static/dynamic response of SiO2-epoxy nanocomposites

Yazhou Guo; Yulong Li

doi:10.1016/j.msea.2007.02.011

Quasi-static/dynamic response of SiO₂-epoxy nanocomposites

Yazhou Guo, Yulong Li

Research output: Contribution to journal › Article › peer-review

96 Scopus citations

Abstract

The quasi-static and dynamic characteristics of SiO₂-epoxy nanocomposites with SiO₂ nanoparticle weight contents of 0, 3 and 7% under uniaxial compression at different loading rates (10^-4 to 10⁴ s^-1) are experimentally studied by means of a universal testing machine and desktop split Hopkinson pressure bar (SHPB), respectively. Results show that strain-rate hardening plays a dominate role in the stress-strain behavior of the composites and the effect of strain-hardening plays a secondary role. The performance of the composite is dependent on loading rate and nanoparticle dispersion. The compressive strength of the composites is higher than that of pure epoxy at high strain-rates, whereas there is no obvious trend between the compressive strength and the particle contents at low loading rate.

Original language	English
Pages (from-to)	330-335
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	458
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.02.011
State	Published - 15 Jun 2007

Keywords

High strain-rate
Nanocomposites
SHPB
SiO-epoxy

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10.1016/j.msea.2007.02.011

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abstract = "The quasi-static and dynamic characteristics of SiO2-epoxy nanocomposites with SiO2 nanoparticle weight contents of 0, 3 and 7% under uniaxial compression at different loading rates (10-4 to 104 s-1) are experimentally studied by means of a universal testing machine and desktop split Hopkinson pressure bar (SHPB), respectively. Results show that strain-rate hardening plays a dominate role in the stress-strain behavior of the composites and the effect of strain-hardening plays a secondary role. The performance of the composite is dependent on loading rate and nanoparticle dispersion. The compressive strength of the composites is higher than that of pure epoxy at high strain-rates, whereas there is no obvious trend between the compressive strength and the particle contents at low loading rate.",

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AU - Li, Yulong

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N2 - The quasi-static and dynamic characteristics of SiO2-epoxy nanocomposites with SiO2 nanoparticle weight contents of 0, 3 and 7% under uniaxial compression at different loading rates (10-4 to 104 s-1) are experimentally studied by means of a universal testing machine and desktop split Hopkinson pressure bar (SHPB), respectively. Results show that strain-rate hardening plays a dominate role in the stress-strain behavior of the composites and the effect of strain-hardening plays a secondary role. The performance of the composite is dependent on loading rate and nanoparticle dispersion. The compressive strength of the composites is higher than that of pure epoxy at high strain-rates, whereas there is no obvious trend between the compressive strength and the particle contents at low loading rate.

AB - The quasi-static and dynamic characteristics of SiO2-epoxy nanocomposites with SiO2 nanoparticle weight contents of 0, 3 and 7% under uniaxial compression at different loading rates (10-4 to 104 s-1) are experimentally studied by means of a universal testing machine and desktop split Hopkinson pressure bar (SHPB), respectively. Results show that strain-rate hardening plays a dominate role in the stress-strain behavior of the composites and the effect of strain-hardening plays a secondary role. The performance of the composite is dependent on loading rate and nanoparticle dispersion. The compressive strength of the composites is higher than that of pure epoxy at high strain-rates, whereas there is no obvious trend between the compressive strength and the particle contents at low loading rate.

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Quasi-static/dynamic response of SiO₂-epoxy nanocomposites

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