Entity

Time filter

Source Type


Zheleznov L.P.,Siberian Scientific Research Institute of Aviation SibNIA | Kabanov V.V.,Siberian Scientific Research Institute of Aviation SibNIA | Boiko D.V.,Siberian Scientific Research Institute of Aviation SibNIA
Russian Aeronautics | Year: 2010

A problem of geometrically nonlinear deformation and stability of supported cylindrical shells with the oval cross-section contour is solved by the finite element method. The nonlinear deformation and stability of shells under combined loading by bending, torsion moments, transverse force and internal pressure are analyzed. The critical loads and buckling modes of shells are determined. The influence of deformation nonlinearity and shell ovality on critical loads is clarified. © 2010 Allerton Press, Inc. Source


Zheleznov L.P.,Siberian Scientific Research Institute of Aviation SibNIA | Kabanov V.V.,Siberian Scientific Research Institute of Aviation SibNIA | Boiko D.V.,Siberian Scientific Research Institute of Aviation SibNIA
Russian Aeronautics | Year: 2014

A finite element formulation of solving the stability problems for the discretely reinforced noncircular cylindrical shells is presented taking into account that their subcritical stress strain state is instantaneous and nonlinear. The author-developed finite elements for a natural-curved shell and the beam elements of reinforcements are used. A numerical algorithm to study the nonlinear deformation and stability of shells was developed. The stability of a stringer-stiffened cylindrical shell with an elliptical cross-sectional contour under transverse bending and internal pressure is examined. We also investigate the effect of internal pressure, ellipticity and nonlinearity of deformation, as well as of reinforcement discreteness and heterogeneity. © 2014 Allerton Press, Inc. Source

Discover hidden collaborations