Irradiation Effects on the Behavior of 3-D Free Vibrations of Solid and Hollow Circular Cylinders via p-Ritz Method

In this study, a general approach is presented for solving the free vibration analysis of solid and hollow circular cylinders exposed to the rradiation. It is obvious that Irradiation by neutrons can affect mechanical properties of material. In order to examine the influence of this phenomenon on the dynamic behavior of solid and hollow circular cylinders, it is mathematically simulated by assuming Young’s modulus and density are exponentially varied as a new function of position and time. The analysis procedure is based on the linear, small strain, and three-dimensional elasticity theory. Finally, the various values of natural frequencies of the above cylinder under the irradiation are graphically presented for different inner-outer radius ratio, thickness-radius ratio and irradiation parameters.

کلیدواژه ها:

Neutrons radiation ، Cylinder ، 3-D elasticity solution