Investigation of the mathematical modelling of the stress analysis in the rectangular thick plate with spatially curved structure using FEM

In this thesis the stress distribution in a thick plate fabricated from the composite material with spatially periodically curved structure is studied. It is assumed that this plate edges are simply supported and uniformly distributed normal forces are applied to its upper face. The study is carried out within the framework of continuum theory of Akbarov and Guz (1991a) and threedimensional exact equations of elasticity theory by using Finite Element Method (FEM). These respect to the solution of the boundary value problems of the linear partial differential equations with the variable coefficients by FEM. Appropriate functional are constituted within framework FEM and numerical results of the problem are obtained with prepared computer programming by using Finite Element modeling and explanations of these results are given. Keywords: Linear partial differential equation system, Finite Element Method, composite.