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Effect of strain rate and silica filler content on the compressive behavior of RTM6 epoxy-based nanocomposites

Ahmed Elmahdy (UGent) , Aldobenedetto Zotti, Simona Zuppolini, Mauro Zarrelli, Anna Borriello and Patricia Verleysen (UGent)
(2021) POLYMERS. 13(21).
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Abstract
The aim of this paper is to investigate the effect of strain rate and filler content on the compressive behavior of the aeronautical grade RTM6 epoxy-based nanocomposites. Silica nanoparticles with different sizes, weight concentrations and surface functionalization were used as fillers. Dynamic mechanical analysis was used to study the glass transition temperature and storage modulus of the nanocomposites. Using quasi-static and split Hopkinson bar tests, strain rates of 0.001 s(-1) to 1100 s(-1) were imposed. Sample deformation was measured using stereo digital image correlation techniques. Results showed a significant increase in the compressive strength with increasing strain rate. The elastic modulus and Poisson's ratio showed strain rate independency. The addition of silica nanoparticles marginally increased the glass transition temperature of the resin, and improved its storage and elastic moduli and peak yield strength for all filler concentrations. Increasing the weight percentage of the filler slightly improved the peak yield strength. Moreover, the filler's size and surface functionalization did not affect the resin's compressive behavior at different strain rates.
Keywords
epoxy resin, nanocomposites, silica nanoparticles, mechanical behavior, high strain rate, split Hopkinson bar, FUNCTIONALIZED NANOSILICA, HYPERBRANCHED POLYMERS, MECHANICAL-PROPERTIES, RESIN, COMPOSITES, RELAXATION, PARTICLES, TOUGHNESS, FRACTURE

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MLA
Elmahdy, Ahmed, et al. “Effect of Strain Rate and Silica Filler Content on the Compressive Behavior of RTM6 Epoxy-Based Nanocomposites.” POLYMERS, vol. 13, no. 21, 2021, doi:10.3390/polym13213735.
APA
Elmahdy, A., Zotti, A., Zuppolini, S., Zarrelli, M., Borriello, A., & Verleysen, P. (2021). Effect of strain rate and silica filler content on the compressive behavior of RTM6 epoxy-based nanocomposites. POLYMERS, 13(21). https://doi.org/10.3390/polym13213735
Chicago author-date
Elmahdy, Ahmed, Aldobenedetto Zotti, Simona Zuppolini, Mauro Zarrelli, Anna Borriello, and Patricia Verleysen. 2021. “Effect of Strain Rate and Silica Filler Content on the Compressive Behavior of RTM6 Epoxy-Based Nanocomposites.” POLYMERS 13 (21). https://doi.org/10.3390/polym13213735.
Chicago author-date (all authors)
Elmahdy, Ahmed, Aldobenedetto Zotti, Simona Zuppolini, Mauro Zarrelli, Anna Borriello, and Patricia Verleysen. 2021. “Effect of Strain Rate and Silica Filler Content on the Compressive Behavior of RTM6 Epoxy-Based Nanocomposites.” POLYMERS 13 (21). doi:10.3390/polym13213735.
Vancouver
1.
Elmahdy A, Zotti A, Zuppolini S, Zarrelli M, Borriello A, Verleysen P. Effect of strain rate and silica filler content on the compressive behavior of RTM6 epoxy-based nanocomposites. POLYMERS. 2021;13(21).
IEEE
[1]
A. Elmahdy, A. Zotti, S. Zuppolini, M. Zarrelli, A. Borriello, and P. Verleysen, “Effect of strain rate and silica filler content on the compressive behavior of RTM6 epoxy-based nanocomposites,” POLYMERS, vol. 13, no. 21, 2021.
@article{8725351,
  abstract     = {{The aim of this paper is to investigate the effect of strain rate and filler content on the compressive behavior of the aeronautical grade RTM6 epoxy-based nanocomposites. Silica nanoparticles with different sizes, weight concentrations and surface functionalization were used as fillers. Dynamic mechanical analysis was used to study the glass transition temperature and storage modulus of the nanocomposites. Using quasi-static and split Hopkinson bar tests, strain rates of 0.001 s(-1) to 1100 s(-1) were imposed. Sample deformation was measured using stereo digital image correlation techniques. Results showed a significant increase in the compressive strength with increasing strain rate. The elastic modulus and Poisson's ratio showed strain rate independency. The addition of silica nanoparticles marginally increased the glass transition temperature of the resin, and improved its storage and elastic moduli and peak yield strength for all filler concentrations. Increasing the weight percentage of the filler slightly improved the peak yield strength. Moreover, the filler's size and surface functionalization did not affect the resin's compressive behavior at different strain rates.}},
  articleno    = {{3735}},
  author       = {{Elmahdy, Ahmed and Zotti, Aldobenedetto and Zuppolini, Simona and Zarrelli, Mauro and Borriello, Anna and Verleysen, Patricia}},
  issn         = {{2073-4360}},
  journal      = {{POLYMERS}},
  keywords     = {{epoxy resin,nanocomposites,silica nanoparticles,mechanical behavior,high strain rate,split Hopkinson bar,FUNCTIONALIZED NANOSILICA,HYPERBRANCHED POLYMERS,MECHANICAL-PROPERTIES,RESIN,COMPOSITES,RELAXATION,PARTICLES,TOUGHNESS,FRACTURE}},
  language     = {{eng}},
  number       = {{21}},
  pages        = {{20}},
  title        = {{Effect of strain rate and silica filler content on the compressive behavior of RTM6 epoxy-based nanocomposites}},
  url          = {{http://dx.doi.org/10.3390/polym13213735}},
  volume       = {{13}},
  year         = {{2021}},
}
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