Application of stiffness rings for improvement of operating reliability of the tank with shape imperfections
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Date
Authors
Lukianchenko, O. O.
Journal Title
Journal ISSN
Volume Title
Publisher
КНУБА
Abstract
An efficiency of using of two stiffness rings for improvement of operating reliability of the tank
with real shape imperfection at the action of combination load was evaluated. The computer model
of the tank was constructed in the form of the thin cylindrical shell by of the program complex of
finite element analysis. The tank stability problem under separate and joint action of surface
pressure and axial compression was solved by the Lancosh method in linear formulation and as a
nonlinear static problem by the Newton-Raphson method. The region of the tank failure-free work,
which has the graphical presentation, confirmed the improvement of the tank wall stability due to
the use of stiffness rings, especially in the area of surface pressure action.
Description
Keywords
finite element method, operating reliability, stability, tank, failure-free region, thin-walled shell, shape imperfection, combined load, stiffness ring, метод скінченних елементів, надійність експлуатації, стійкість, резервуар, область безвідмовної роботи, тонкостінна оболонка, недосконалість форми, комбіноване навантаження, кільце жорсткості
Citation
Lukianchenko O. O. Application of stiffness rings for improvement of operating reliability of the tank with shape imperfections / O. O. Lukianchenko // Опір матеріалів і теорія споруд : зб. наук. праць / Київ. нац. ун-т буд-ва і архіт. ; гол. ред. П. П. Лізунов. - Київ : КНУБА, 2020. - Вип. 104. - С. 242 - 254. - Бібліогр. : 15 назв.