Application of improved element-free Galerkin combining with finite strip method for buckling analysis of channel-section beams with openings

Mousavi, Hamed; Azhari, Mojtaba; Saadatpour, M.M.; Sarrami-Foroushani, Saeid

doi:10.1007/s00366-020-01087-8

Cited by 6 publications

(1 citation statement)

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“…It should be pointed out that the previous analytical method mainly focused on flange/lip distortional buckling, only the compressed flange-lip system was used to calculate the critical stress. Mousavi et al [26] applied the improved elementfree Galerkin with the finite strip to evaluate the buckling behaviour of CFS beams with web openings. This paper describes an analytical solution for approximating the critical stresses of flange/web distortional buckling of PCFS beams when subjected to pure bending.…”

Section: Introductionmentioning

confidence: 99%

Analytical solution for flange/web distortional buckling of cold-formed steel beams with circular web perforations

Kim

Huang

et al. 2021

Mechanics of Advanced Materials and Structures

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Perforated cold-formed steel (PCFS) beams are increasingly used in constructional industry and become popular due to their advantages and economic benefit. Apart from the light weight, the openings in PCFS beams can also be used for services such as pipe utilities to release more building space. However, beams with web perforations may collapse as the result of web-distortional buckling or flange/web distortional buckling due to the web weakness caused by perforations. In this paper a study on the flange/web distortional buckling of PCFS beams is presented. An analytical solution to determine the critical stress of flange/web distortional buckling of PCFS beams is derived by using energy method. To demonstrate the analytical solution, finite element analysis is also carried out. The finite element analysis results show that the analytical solution provided can give good and reliable prediction for the flange/web distortional buckling of PCFS beams.

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Section: Introductionmentioning

confidence: 99%