On the Existence of a Solution for a Solid Circular Plate Bilaterally Supported Along Two Antipodal Boundary Arcs and Loaded by a Central Transverse Concentrated Force

Author:

Monegato G.1,Strozzi A.2

Affiliation:

1. Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy

2. Faculty of Engineering, Modena and Reggio Emilia University, Via Vignolese 905, 41100 Modena, Italy

Abstract

A purely flexural mechanical analysis is presented for a thin, solid, circular plate, deflected by a central transverse concentrated force, and bilaterally supported along two antipodal periphery arcs, the remaining part of the boundary being free. This problem is modeled in terms of a singular integral equation of the Prandtl type, which possesses a unique solution expressed in terms of a reaction force containing a factor exhibiting square root endpoint singularities. This solution is then shown not to respect the requested boundary constraints. It is therefore concluded that, within the framework of the purely flexural plate theory, the title problem cannot admit the weighted L2 solution here examined. It cannot, however, be excluded that a solution to the title problem exists, which possesses stronger endpoint singularities than those examined in this paper, or is of a more general form than the one considered here.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference9 articles.

1. Sherman, D. I. , 1955, “On the Bending of a Circular Plate Partially Supported and Partially Free Along the Contour,” Dokl. Akad. Nauk SSSR, 105, pp. 1180–1183.

2. Samodurov, A. A., and Tikhomirov, A. S., 1983, “Solution of the Bending Problem of a Circular Plate With a Free Edge Using Paired Equations,” P.M.M, 46, pp. 794–797.

3. Grigolyuk, E., and Tolkachev, V., 1987, Contact Problems in the Theory of Plates and Shells, Mir Publishers, Moscow.

4. Dragoni, E., and Strozzi, A., 1995, “Mechanical Analysis of a Thin Solid Circular Plate Deflected by Transverse Periphery Forces and by a Central Load,” Proc. Inst. Mech. Eng., 209, pp. 77–86.

5. Mikhlin, S. G., 1964, Integral Equations, Pergamon Press, New York.

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