Abstract
This paper deals with the thermoelastic damping (Q-factor) of a gold nano-beam resonator and is based on two-temperature thermoelasticity models. An explicit formula of the Q-factor has been derived when Young's modulus is variable as a function of the room temperature. The length of the beam and Young's modulus has been studied with comparison being made between the Biot model and the Lord-Shulman model (L-S). The numerical results show that the values of beam length, the relaxation time parameter, and the two-temperature parameter have a strong influence on the thermoelastic damping quality factor.