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RISS 인기검색어
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- 저자 : R. Aydin (검색결과 2 건)
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On the evaluation of critical lateral buckling loads of prismatic steel beams
R. Aydin,A. Gunaydin,N. Kirac 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.18 No.3
In this study, theoretical models and design procedures of the behavior of thin-walled simply supported steel beams with an open cross section under a large torsional effect are presented. I-sections were chosen as the cross section types. Firstly, the widely used differential equations for the lateral buckling for the pure bending moment effect in a beam element were adopted for the various moment distributions along the span of the beam. This solution was obtained for both mono-symmetric and bisymmetric sections. The buckling loads were then obtained by using the energy method. When using the energy method to solve the problem, it is possible to locate the load not only on the shear center but also at several points of the section depth. Buckling loads were obtained for six different load types. Results obtained for different load and cross section types were checked with ABAQUS software and compared with several standard rules.
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Vibration analysis of honeycomb sandwich composites filled with polyurethane foam by Taguchi Method
Muhammet R. Aydin,Ömer Gündoğdu 국제구조공학회 2018 Steel and Composite Structures, An International J Vol.28 No.4
In this study, the effect of polyurethane foam filler, in addition to surface layer thickness and core material thickness, on vibration characteristics of sandwich structures was investigated. The manufacturing process was carried out according to the Taguchi method. The natural frequencies and damping ratios of the produced samples were determined experimentally for fixedfree boundary conditions. In addition, solid models were developed for test samples and their finite element analyses were performed with ANSYS<sub>®</sub> to obtain their natural frequencies and mode shapes. An acceptably good agreement was found with the comparison of experimental results with the numerically obtained ones. The most effective parameters on the vibration characteristics of the sandwich structure were determined by the Taguchi method.
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