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The economic feasibility of taking into account the joint work of load-bearing and enclosing elements in large-span wooden spatial structures
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 664-678 (2021) (2021)
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Experimental study of elastic-plastic deformation of a cylindrical shell made of steel 45
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 519-527 (2021) (2021)
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Structural analysis of high-rise building using ETABS and RSA software
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 2, Pp 133-139 (2021) (2021)
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The influence of mounted assembly process on the stress-strain state of the lattice dome frame
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 443-454 (2021) (2021)
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Determination of natural vibration frequencies of reinforced cylindrical shell
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 628-638 (2021) (2021)
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Geometry of the normal ruled surfaces
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 562-575 (2021) (2021)
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Stress state analysis of an equal slope shell under uniformly distributed tangential load by different methods
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 51-62 (2021) (2021)
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Viktor A. Bazhenov (1941-2021)
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 308-309 (2021) (2021)
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Evaluation of seismic forces under modified structural schemes in the process of vibrations
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 4, Pp 391-403 (2021) (2021)
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Seismic stability of vibration-insulated turbine foundations depending on the frequency composition of seismic impact
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 30-41 (2021) (2021)
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Theoretical foundations for calculating bridges for endurance using the kinetic theory of durability of structural materials
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 219-227 (2021) (2021)
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Innovation structures of very lean roller compacted concrete dams
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 248-260 (2021) (2021)
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Pavel M. Salamakhin (1930-2021)
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3 (2021) (2021)
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Inverted pyramid Azores - an eternal hybrid structure
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 261-269 (2021) (2021)
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A new direction for calculating the strength of bent reinforced concrete elements along inclined sections with an example of calculating an experimental beam
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 479-499 (2021) (2021)
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Numerical analysis of cylindrical shell stability interacting with inhomogeneous soil
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 608-616 (2021) (2021)
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Abstract:
The research is aimed at determining the critical buckling load of the spatial model shell - soil system in the case of inhomogeneous physical and mechanical soil properties along the longitudinal axis of the cylindrical shell in a nonlinear formulations of the task. Methods. The task is solved by a numerical method using a finite element complex ANSYS. Two calculated cases of the spatial model shell - soil system are compiled. The soil is divided into two equal parts with different physical and mechanical properties. The problem was solved in geometrically, physically and constructively nonlinear statement. Nonlinearity is due to the need to find the contact zone through an iterative process and determine the time-varying position of the shell. The soil is modeled by volumetric elements, each consisting of twenty nodes. The shell is modeled by flat elements, each consisting of four nodes. Contact elements of one-side action are used. Critical buckling load are determined relative to the actual load of its own weight. Results. Critical loads are obtained from two calculated cases of the spatial model shell - soil system. There is a comparative analysis of the results. An assessment of the stability margin of the shell relative to the actual load is given.
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Keyword:
Architectural engineering. Structural engineering of buildings; contact interaction; finite elements; shell stability; stability margin; TH845-895
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URL: https://doi.org/10.22363/1815-5235-2021-17-6-608-616 https://doaj.org/article/42c3382faec149be87f4036a68ec44d8
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17 |
Optimization of channels and I-shaped bended closed profiles with tubular shelves from sheets of different thicknesses
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 2, Pp 140-164 (2021) (2021)
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Modeling and visualizing of the formation of a snub dodecahedron in the AutoCAD system
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 42-50 (2021) (2021)
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Mathematical modeling of bending stress waves in an aboveground oil pipeline under unsteady seismic action
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 639-650 (2021) (2021)
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Stress-strain state of reinforced concrete structures of the LN-1 and LN-2 retaining walls of Zagorskaya PSPP taking into account the opening of interblock joints and the formation of secondary cracks
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 4, Pp 324-334 (2021) (2021)
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