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STABILITY OF GEOMETRICALLY NON-LINEAR DEFORMATIONS OF MULTI-LAYER THIN-WALLED SPATIAL SYSTEMS BY APPLICATION OF FINITE ELEMENTS METHOD

Authors: T. Gardapkhadze, M. Gardapkhadze


Abstract:

Are developed for multi-layer “rectangular” and “triangle” spherical hinged elements the numerical methods of construction of determined by stiffness matrixes and vectors in curvilinear orthogonal coordinate systems; these methods are realized as standard procedure packages. For program realization of methods is applied the algorithm introduction of initial data that makes these procedures invariant for selection of coordinate surfaces, structure of layers and their physical and mechanical characteristics with respect of force and heat kind of impacts.

Keywords: Hinged element; shell; plate; layer; composite.

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