Here we take up the case of two elastic plates of annular form, which are placed horintally, kept at a vertical distance apart, and placed concentrically. These plates are fixed along inner and outer boundary edge-lines respectively. Moreover, these two annular elastic plates are mutually connected by means of a number of elastic straight rods which are fixed to elastic plates at both ends. The points of fixation of rods are arranged equidistantly along a circumference of a concentric circle. The state of stress caused by the action of elastic rods (such as originating from thermal expansion due to external heating, or by shrinkage of elastic rods, etc.) in the elastic plate, is studied analytically.
Furthermore, study is made about the case in which two elastic plates are in form of infinite strip of rectangular elastic plates, that is, annular elastic plates in which the radius R is made infinitely large.
The results obtained by these series of analytical studies are explaind by graphs, which were obtained by applying numerical estimation to our analytical results.
As to practical meaning of the present analytical study, we may mention that it represents an idealized case of structures of once-through boilers. Also, we may mention the case of structiral form of inlet ring of hydraulic turbines, also as an idealized case about them.