Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study and numerical simulation analysis of distortional buckling capacity of stainless steel lipped C-section beams
Highlights The mechanical property test of S30408 austenitic stainless steel in plate and corner regions was conducted. Experimental study on the distortional buckling bearing capacity of 8 stainless steel lipped C-section beams was conducted. A refined finite element model of distortional buckling bearing capacity of lipped C-section beams was established. The applicability of the current standards for lipped C-section stainless steel beams was evaluated.
Abstract For S30408 austenitic stainless steel, a mechanical property test of 2.5 mm and 3.0 mm plate and corner regions was carried out, and the mechanical properties and stress–strain curves were determined. On this basis, the distortional buckling capacity tests of 8 stainless steel lipped C-section beams were carried out, and the mechanical performance and failure modes of each specimen were revealed. The load-mid-span vertical displacement curve, load-loading point vertical displacement curve, load-mid-span lateral displacement curve, load-support rotation curve, load-transverse strain curve, distortional buckling load and ultimate bearing capacity of each specimen were determined. A refined finite element model of each specimen was established using the ABAQUS software, and a numerical simulation analysis was carried out. By comparing the finite element results with the experimental results, the accuracy of the finite element model was verified. A parametric analysis was conducted using the validated finite element model. The results showed that the nominal yield strength of the corner region was about 40% ∼ 60% higher than that of the plate region, and the elongation was obviously lower than that in the plate region. In the bearing capacity test, the experimental phenomena of each specimen were illustrated, and the development of distortional buckling wave of the compressed flange was revealed. After distortional buckling, each specimen still had a post-buckling strength. The test results and simulation data were compared with the current standards, which showed that the current standards underestimated the distortional buckling capacity of stainless steel lipped C-section beams.
Experimental study and numerical simulation analysis of distortional buckling capacity of stainless steel lipped C-section beams
Highlights The mechanical property test of S30408 austenitic stainless steel in plate and corner regions was conducted. Experimental study on the distortional buckling bearing capacity of 8 stainless steel lipped C-section beams was conducted. A refined finite element model of distortional buckling bearing capacity of lipped C-section beams was established. The applicability of the current standards for lipped C-section stainless steel beams was evaluated.
Abstract For S30408 austenitic stainless steel, a mechanical property test of 2.5 mm and 3.0 mm plate and corner regions was carried out, and the mechanical properties and stress–strain curves were determined. On this basis, the distortional buckling capacity tests of 8 stainless steel lipped C-section beams were carried out, and the mechanical performance and failure modes of each specimen were revealed. The load-mid-span vertical displacement curve, load-loading point vertical displacement curve, load-mid-span lateral displacement curve, load-support rotation curve, load-transverse strain curve, distortional buckling load and ultimate bearing capacity of each specimen were determined. A refined finite element model of each specimen was established using the ABAQUS software, and a numerical simulation analysis was carried out. By comparing the finite element results with the experimental results, the accuracy of the finite element model was verified. A parametric analysis was conducted using the validated finite element model. The results showed that the nominal yield strength of the corner region was about 40% ∼ 60% higher than that of the plate region, and the elongation was obviously lower than that in the plate region. In the bearing capacity test, the experimental phenomena of each specimen were illustrated, and the development of distortional buckling wave of the compressed flange was revealed. After distortional buckling, each specimen still had a post-buckling strength. The test results and simulation data were compared with the current standards, which showed that the current standards underestimated the distortional buckling capacity of stainless steel lipped C-section beams.
Experimental study and numerical simulation analysis of distortional buckling capacity of stainless steel lipped C-section beams
Fan, Shenggang (Autor:in) / Wu, Yiwen (Autor:in) / Du, Li (Autor:in) / Liu, Meijing (Autor:in) / Wu, Qixun (Autor:in)
Engineering Structures ; 250
17.10.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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