Abstract
Thermoelastic vibration and damping of a double-walled carbon nanotube upon interlayer van der Waals (vdW) interaction and initial axial stresses are studied. The inner and outer carbon nanotubes are modeled as two individual elastic thin shells. The general thermoelastic coupled equations for cylindrical thin shells are presented and simulation results are demonstrated for double-walled carbon nanotubes (DWCNTs). Numerical results show that noncoaxial frequencies are insensitive to initial axial stress while the coaxial (natural) frequencies are sensitive to the initial axial stress. However, the influence of thermal effect is not significant on the frequencies. Thermoelastic damping effect in the vibration of simply-supported DWCNT is smaller than that of SWCNT but for clamped–clamped DWCNT, thermoelastic damping is higher than that of SWCNT. In addition, investigation about the effect of initial axial tensile stress on thermoelastic damping shows that this factor increases dissipation in simply-supported nanotubes and decreases it for clamped–clamped nanotubes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Physica E: Low-dimensional Systems and Nanostructures
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
