Abstract
An applied technique for nonlinear analysis of joints of intersecting shells is developed. It is based on the theory of shells, the finite element method and the theory of plastic flow. A rational computational algorithm for solving nonlinear problems of intersecting shells is obtained, taking into account the peculiarities of the stress state of shells in the intersection region. A computational analysis of the joints of intersecting spherical and cylindrical composite shells under the action of internal pressure is carried out. The effect of the anisotropy of the properties of composite fibrous materials on the maximum stresses in intersecting composite shells is shown. The results of linear and nonlinear analysis for intersecting spherical and cylindrical composite shells are presented. Numerical modeling was carried out by the finite element method in an elastic and elastoplastic formulation. The calculation was carried out using the author's program – Stress Analysis in Intersecting Shells (SAIS).
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