Most available thermal stress and associated natural frequency analyses of circular disk elements incorporate only the steady-state temperature distribution and intuitively assume that the transient is not significant. An analytical rule-of-thumb involving the calculation and test of a nondimensional number h1 is proposed for predicting conditions when the transient regime may be significantly more severe than the steady state. The number h1 = hb2/ksa, a modified Biot number, involves disk surface heat transfer, disk conductivity, and geometry.

This content is only available via PDF.
You do not currently have access to this content.