Varianichko M. 3. Deformation and stability of elastic shallow flat thin-walled axisymmetric structures under external pressure

3. Elastic axisymmetrical flat closed conical shells and cons- tructions, consisting of conical shells and plates at external pressure, the universal software Lyre and ANSYS. Clarification of calculation of the stress-strain state and stability of the considered constructions, calculation of new constructions of this class, and estimation of applicability of software to the calculation of the considered problems. Research methods are physical and numeral experiments. New quantitative and high- quality experimental and calculation dates about deformation and stability of component shells are obtained. The parameters of shallow component shells with high bearing capacity are defined. The areas of effective applicability of the Lyre are defined. A simple formula for determination of critical pressure of the closed conical shells is offered. Branch of using: building, engineering.