High strain rate response of carbon nanotubes based elasotmer composites

Abstract eng:
The article investigates the response of nanoparticle reinforced elastomer composites under dynamic impact. The preparation, characterization and testing methodology of polydimethylsiloxane based elastomers reinforced with multi walled carbon nanotubes is discussed in detail. Under quasi-static condition the presence of CNT network resulted in an enhanced stiffness. When subjected to high strain rates of compressive loading the presence of CNTs influenced the stress ± strain curve characteristics (e.g. transition point from strain hardening to softening region) while greatly improving the energy storing capabilities. To test under high rates of strain, some necessary modification were also made to the dynamic testing apparatus (Kolsky bar/Split Hopkinson bar).

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