چکیده
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Based on the classical molecular-dynamics (MD) simulations, the vibrational behavior
of cross-linked functionalized carbon nanotubes (CNTs) with polyethylene (PE) chains is studied
under the applied mechanical tensile and compressive strains. So, different distribution patterns,
namely mapped and wrapped distribution patterns are chosen. According to the results, it is
seen that natural frequency of cross-linked functionalized CNTs reduces in which this reduction
increases by increasing the weight percentage of attached chain. Under tensile strain, it is observed
that the frequency of functionalized CNTs increases. Moreover, it is observed that the frequency
shifts rise by increasing the applied tensile strain. By contrast, the compressive strain results
in higher reductions in natural frequency of functionalized CNTs which considerably rises by
increasing the applied strain. Moreover, it is shown that as the weight percentage of cross-linked
functionalized CNTs increases, the sensitivity of the frequency shift to the applied tensile and
compressive strains decreases and increases, respectively.
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