ANALYSIS OF THE STRESS CONCENTRATION IN THIN-WALLED ELEMENTS OF STRUCTURES WITH LOCAL IN-DEPTH

Abstract

One must use a three-dimensional approach to determine the concentration of stresses in thin-walled elements of structures with local deepenings or defects. The stress concentration is analyzed for shells and panels with local deepenings. The authors investigated the effect of the finite element partition of a panel on the results and the concentration of the stress for the pan- els made from the different type of material: the model of Hooke and the model of Neo-Hooke (rubber-like material).

Keywords

• сферическая и цилиндрическая оболочки
• плоская панель
• локальное углубление
• трехмерные конечные элементы
• напряженно-деформированное состояние
• концентрация напряжений
• модель Гука
• модель Нео-Гука
• сетка разбиения