MATHEMATICAL MODELS OF THE IMPROVEMENTED CALCULATION ON DURABILITY OF CONTINUOUS AVIATION CONNECTIONS WITH ACCOUNT OF THEIR COMPLIANCE

• Main Author: V V Firsanov
• Format: Article
• Language: English
• Published: Peoples’ Friendship University of Russia (RUDN University) 2015-06-01
• Series: Structural Mechanics of Engineering Constructions and Buildings
• Subjects: неклассическая теория пластинок и оболочек; цилиндриче- ская оболочка; краевой эффект; кольцевая пластинка; краевая плоская деформация; краевая задача; полиномиальная аппроксимирующая функция; разрешающая система дифференциальных уравнений; естественные граничные условия; нормальные продоль- ные и поперечные напряжения; касательные напряжения; фланцевое соединение; задача Фламана-Буссинеска; упругие свойства материалов
• Online Access: http://journals.rudn.ru/structural-mechanics/article/view/11059

Mathematical models and algorithms for the calculation, which allows to improvethe strain-stress state of continuous aviation connections and joints with variation in wall thick- ness are constructed.The boundary-value problem by definition of a stress state of a bound- aryplane strain ("boundary layer" type) for rigid fixed edges of a cylindrical shell and an annu- lar plate at axisymmetric loading is formulated and solved. Calculations of stresses in flange connection are carried out. Graphs of these stresses on a thickness of a plate and a shell are constructed.The boundary-value problem by "boundary layer" definition is modified for the account of connected elements of structures compliance is modified and the estimation of its influence is given