Simple Buckling
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Finite strip method computer application for buckling analysis of thin-walled structures with arbitrary cross-sections
Abstract The Direct Strength Method (DSM) is a well-known formulation presented in the Brazilian standard ABNT NBR 14762:2010, that estimates the strength capacity of cold-formed steel (CFS) members. However, this formulation requires the elastic critical buckling loads as point of departure, regarding local (L), distortional (D) and global (G) modes, which
REM, Int. Eng. J.. Publicado em: 2021-09
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2. A simple spline finite strip for buckling analysis of composite cylindrical panel with cutout
Abstract In this study, a new sub-parametric strip element is developed to simulate the axially loaded composite cylindrical panel with arbitrary cutout. For this purpose, a code called SSFSM is developed in FORTRAN to analyze the buckling of panels. The first order shear deformation theory is used to form the strain-displacement relations. Spline and Lagran
Lat. Am. j. solids struct.. Publicado em: 30/09/2019
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3. Bending, Vibration and Buckling of Laminated Composite Plates Using a Simple Four Variable Plate Theory
Abstract In the present study, a simple trigonometric shear deformation theory is applied for the bending, buckling and free vibration of cross-ply laminated composite plates. The theory involves four unknown variables which are five in first order shear deformation theory or any other higher order theories. The in-plane displacement field uses sinusoidal fu
Lat. Am. j. solids struct.. Publicado em: 2016-03
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4. Análise experimental de vigas constituídas de perfis formados a frio com emendas soldadas submetidas à flexão simples / Experimental analysis of beams made of cold formed steel with welded seams subjected to bending
Os perfis metálicos formados a frio tem sido bastante usados quando se pensa em fabricar uma estrutura metálica com peso próprio reduzido. O seu uso até a algum tempo atrás na construção civil estava limitado apenas a estruturas secundárias, mas, com o crescimento considerável de pesquisas envolvendo este tipo de material associadas ao desenvolvimen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/09/2009
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5. Experimental analysis of beams made of cold formed steel with welded seams subjected to bending / Análise experimental de vigas constituídas de perfis formados a frio com emendas soldadas submetidas à flexão simples
Os perfis metálicos formados a frio tem sido bastante usados quando se pensa em fabricar uma estrutura metálica com peso próprio reduzido. O seu uso até a algum tempo atrás na construção civil estava limitado apenas a estruturas secundárias, mas, com o crescimento considerável de pesquisas envolvendo este tipo de material associadas ao desenvolvimen
Publicado em: 2009
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6. Perfis de Alma Senoidal: Proposição de Métodos de Cálculo e Análise de Confiabilidade Estrutural: proposição de métodos de cálculo e análise de confiabilidade estrutural
The use of sinusoidal-web shapes has been increased in the last years. In spite of the advantages this type of structural component may offer, the international standards and specifications as well as the Brazilian standard ABNT NBR 8800:2008 do not provide design procedures for all the phenomena involved in its structural behavior. This is probably due to t
Publicado em: 2008
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7. Sobre a estabilidade de cantoneiras de aço formadas a frio submetidas à compressão / On the stability of cold-formed steel angles under compression
Apparently, the structural analysis of a simple angle under compression is an elementary problem, therefore, already largely known. However, cold-formed steel angles, mostly with slender legs, present two critical buckling modes: (i) global-flexural mode, in cases of high length members, (ii) and a coincident local-plate/global-torsional-flexural mode, which
Publicado em: 2008
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8. Uma avaliação experimental e numérica do efeito da rigidez geométrica na resposta dinâmica de estruturas esbeltas sujeitas à excitação de vento. / An experimental and numerical evaluation of the geometric stiffness effect on the dynamic response of slender structures under wind excitation.
Due to a politically and economically pragmatic decision, Brazil has chosen to intensely develop its cellular phone system, in order to bypass a stage of development. Once the decision has been taken, implementation was set in an explosive pace in the 1990s decade by installing tens of thousands of stations. As the electronic systems are usually more expensi
Publicado em: 2008
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9. Structural analysis of guyed steel telecommunication towers for radio antennas
The usual structural analysis models for telecommunication and transmission steel tower design tend to assume a simple truss behaviour where all the steel connections are considered hinged. Despite this fact, the most commonly used tower geometries possess structural mechanisms that could compromise the assumed structural behaviour. A possible explanation fo
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-06
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10. Normative criteria of influence of the Aw / Af and slenderness of soul in the calculation of the resistance to bending of beams slim in elements of steel structures. / Critérios normativos sobre influência da relação Aw/Af e esbeltez de alma no cálculo da resitência à flexão de vigas esbeltas em elementos de estruturas de aço.
Neste trabalho é feita uma análise teórica sobre o comportamento de vigas esbeltas. Uma viga esbelta foi dimensionada com base nos critérios da norma americana Manual of Steel Construction Load and Resistance Factor Design (AISC, 1994), e depois verificada pela norma brasileira NBR 8800: Projeto e execução de estruturas de aço de edifícios (método d
Publicado em: 2007
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11. Normative criteria of influence of the Aw / Af and slenderness of soul in the calculation of the resistance to bending of beams slim in elements of steel structures. / Critérios normativos sobre influência da relação Aw/Af e esbeltez de alma no cálculo da resitência à flexão de vigas esbeltas em elementos de estruturas de aço.
This work contains a theoretical analysis of the behavior of plate girders. A plate girder has been calculated based on the criteria of the American standard Manual of Steel Construction Load and Resistance Factor Design (AISC, 1994), and checked by the Brazilian standard NBR 8800: Projeto e execução de estruturas de aço de edifícios (método dos estados
Publicado em: 2007
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12. Theoretical and experimental analysis of cold-formed steel members under compression / Análise teórica e experimental de perfis de aço formados a frio submetidos à compressão
Cold-formed steel members present, in general, higher local slenderness than classical hot- rolled ones, which make them more prone to local buckling. Besides, thin-walled open sections have small torsional stiffness, and hence global torsional and flexural-torsional instability modes are many times more critical than global flexural ones. Also, distortional
Publicado em: 2006