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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Diana F. Kinzyabulatova, laboratory assistant, Ufa State Petroleum Technological University (USPTU), Ufa, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Ilya A. Porivaev, сandidate of technical sciences, Ufa State Petroleum Technological University (USPTU), Ufa, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Igor V. Nedoseko, doctor of technical sciences, professor, Ufa State Petroleum Technological University (USPTU), Ufa, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleBuckling analysis of C-shaped cold-formed profiles
Abstract.Light steel thin-walled structures are actively used in the construction of quickly erected buildings and structures for various purposes. The use of such structures requires a detailed analysis of the stress-strain state, especially in stability calculations. The purpose of the study is to compare two methods of computations of compressed thin-walled C-profile rods by the method of normative-legal documentation and by the performed numerical experiments in the Siemens FEMAP 11.4.2 program-computer complex with NX Nastran. The numerical experiment is carried out taking into account geometrical and physical nonlinearities. The objects of the research are rods of the same cross section with six different lengths. The results are compared by stability coefficients and by forms of local stability loss. For small values of flexibility the deviation in the results does not exceed 2%, for significant values of flexibility the difference in the results reaches 9.7%. This paper provides evidence that for certain values of flexibility a good convergence of calculation results by analytical method on the basis of methods approved in the standards and the results of numerical experiment in the calculation software based on the method of finite elements is achieved.
Keywords.cold-formed profile, thin-walled members, buckling, finite-element method, geometrical nonlinearity, local buckling
For citations:D. F. Kinzyabulatova, I. A. Porivaev, I. V. Nedoseko Buckling analysis of C-shaped cold-formed profiles // News KSUAE 2022 №4(62), с.108-117, DOI:10.52409/20731523_2022_4_108, EDN: JLMWXF


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