Local Stability of Castellated Beams with Diamond-Shape Openings: FEM Calculation and Experiment

Abstract:

In this paper the questions of local stability of castellated beams with openings of rhombic shape were considered. The studies were performed numerically on the finite-element models including investigation of castellated beam openings, flanges and a web thickness on critical load influence. The obtained results were verified by experimental data received from the tests performed on the 4-meters steel beams with different parameters of perforation. It was a changing relative width of web-posts under constant height of openings. The experiments confirmed reliability of stability calculations by FEM and show that, in fact, the critical load corresponding to buckling of web-posts determines bearing capacity of castellated beams. It was defined that under the fixed height of openings the critical load of beam with rhombic openings is almost independent on relative width of web-posts.

• Periodical: Materials Science Forum (Volume 931)
• Pages: 113-118
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.931.113
• Online since: September 2018
• Authors: Alexej I. Pritykin*, Konstantin A. Emelyanov
• Keywords: Castellated Beam, Experiment, Finite Element Method (FEM), Local Stability, Rhombic Openings, Web-Posts

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