web address of the page
http://jnas.nbuv.gov.ua/article/UJRN-0000232574
Cybernetics and Systems Analysis А - 2019 /
Issue (2012, Т. 48, № 5)
Чирков А. Ю.
Некоторые приложения смешанного метода конечных элементов к решению задач механики деформируемого твердого тела
The paper is devoted to the analysis and use of the mixed finite-element method (FEM) to solve applied problems of solid mechanics. A general theory of mixed projection-mesh algorithms is developed. The reasonableness of the mixed method for elasticity, plasticity, and vibration problems is investigated and is used to formulate the conditions that ensure the stability and convergence of the mixed approximation for displacements, strains, and stresses. A special triangular finite element is designed for two-dimensional and axisymmetric problems. To solve problems of the bending, vibration, and stability of plates, a new hybrid finite element based on the Zienkiewicz triangle is proposed. The mathematical justification of the stability and convergence of the mixed approximation is supplemented with a numerical analysis, which confirms the efficiency of the developed algorithms.
Бібліографічний опис:
Чирков А. Ю. Некоторые приложения смешанного метода конечных элементов к решению задач механики деформируемого твердого тела. Кибернетика и системный анализ. 2012. Т. 48, № 5. С. 126-141. URL: http://jnas.nbuv.gov.ua/article/UJRN-0000232574