Development of Mathematical Models and Computer Technologies for the Virtu al Destructive Testing of Shell Structures

• Main Authors: Yu.N. Shevchenko, N.F. Andrushko, M.E. Babeshko, M.V. Banyas, A.Z. Galishin, P.G. Dehtyarenko, V.G. Savchenko, A.M. Tonkonozhenko, N.N. Tormakhov
• Format: Article
• Language: Ukrainian
• Published: Publishing House "Akademperiodyka" 2013-11-01
• Series: Nauka ta Innovacii
• Subjects: mathematical model; element of thin-walled structures; process of elastic-plastic deformation; shell of revolution; strength criteria
• Online Access: ftp://ftp.nas.gov.ua/akademperiodyka/Downloads/Archive%20SI%20Journal/SI_ukr/2013/N6/Shevchenko.pdf

The method for numerical investigation of the stress-strain state and the strength of thin-walled structural element in the process of loading by increasing internal pressure is elaborated. Constitutive equations of the theory of elasticplastic deformation of isotropic materials along the trajectories of small curvature, the relations of the theory of thin shells of revolution, the strength criteria, methods for solving of boundary value problems of plasticity and corresponding computer programs are used. Calculation results for the failure loading and experimental data confirmed the effectiveness of the developed mathematical model.