A family of interface elements for the analysis of composite beams with interlayer slip

Silva, Amilton R. da; Sousa, João Batista M.

doi:10.1016/j.finel.2008.10.007

Cited by 34 publications

(16 citation statements)

References 21 publications

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“…In the present paper, a Finite Element Resolution is presented for general boundary conditions, and compared to the exact solution based on the resolution of a tenth-order differential equation. The Finite Element Method may exhibit slip locking phenomenon for very stiff connection, a phenomenon widely investigated for the in-plane behaviour [33][34][35][36]. Composite beams studied in this paper are classified as composite beams with interlayer slip (composite beams with partial interaction or layered composite beams) or three-layer sandwich beams.…”

Section: Article In Pressmentioning

confidence: 99%

Out-of-plane behaviour of partially composite or sandwich beams by exact and Finite Element Methods

Challamel¹,

Bernard²,

Casandjian³

2010

Thin-Walled Structures

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Section: Article In Pressmentioning

confidence: 99%

Out-of-plane behaviour of partially composite or sandwich beams by exact and Finite Element Methods

Challamel¹,

Bernard²,

Casandjian³

2010

Thin-Walled Structures

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“…Nguyen [5] studied the linear dynamic problems. Silva et al [6], Schnabl et al [7] and Nguyen and co-workers [8,9] employed the finite element method (FEM) and analytical method in order to examine linear static analysis of multilayered beams. Huang [10], and Shen [11] studied the linear dynamic response, too.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modelling of a Composite Shell with Shear Connectors

Nguyen

Canh²,

Thanh

et al. 2019

Symmetry

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A three-layer composite shell with shear connectors is made of three shell layers with one another connected by stubs at the contact surfaces. These layers can have similar or different geometrical and physical properties with the assumption that they always contact and have relative movement in the working process. Due to these characteristics, they are used widely in many engineering applications, such as ship manufacturing and production, aerospace technologies, transportation, and so on. However, there are not many studies on these types of structures. This paper is based on the first-order shear deformation Mindlin plate theory and finite element method (FEM) to establish the oscillator equations of the shell structure under dynamic load. The authors construct the calculation program in the MATLAB environment and verify the accuracy of the established program. Based on this approach, we study the effects of some of the geometrical and physical parameters on the dynamic responses of the shell.

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“…In this numerical simulation the bar elements simulate the concrete slab and the steel beam, while the interface element connects the bar elements and simulates the deformable connection at the interface between the concrete slab and the steel beam. Several works can be found in the literature for nonlinear numerical analysis of steel-concrete composite beams with partial interaction using bar finite elements [2][3][4][5][6][7][8][9][10][11]. Several works on optimization can be found in the literature in the most diverse areas of knowledge.…”

Section: Introdutionmentioning

confidence: 99%

Optimized dimensioning of steel-concrete composite beams

Silva

Rodrigues

2019

Rev. IBRACON Estrut. Mater.

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ResumoThe steel-concrete composite sections are often used in civil building in Brazil and around the world. The connection of the steel profile and the concrete slab increases the performance of the composite structural element due to the use of the advantages of each material. In this article, a bar element is used with an interface element for nonlinear analysis of steel-concrete composite beams with partial interaction. The objective is to develop an algorithm that uses this analysis tool to design steel-concrete composite beams looking for project optimized in terms of material costs. Defined spans, supports, ultimate and service load, an optimization algorithm is used to define the dimensions of the rectangular cross section of the concrete slab, I-shaped steel profile, and the reinforcement bars of the concrete slab, so that the quantity of these materials are the minimum to ensure structural safety, considering the ultimate and service limit states. The design constraints are obtained from building code requirements for concrete, steel and composite structures. The objective function is defined as the cost per unit length of the composite beam, obtained from the unit cost of each material, steel, concrete and reinforcement. In the optimization process, the iterative method sequential linear programming is used, in which the nonlinear problem is approximated by a sequence of linear problems, which has its optimum point defined step by step by the Simplex method. Examples of composite beams with ultimate loads defined in the literature were used to validate the implementations. Other examples were analyzed, being evaluated at each iteration the restrictions and objective function to verify the efficiency of the algorithm.As seções mistas de aço e concreto estão cada vez mais sendo utilizadas na construção civil, tanto no cenário mundial quanto no Brasil. O trabalho conjunto do perfil de aço e da laje de concreto aumenta consideravelmente o desempenho do elemento estrutural misto devido ao aproveitamento das vantagens de cada material. Neste trabalho, é utilizado um elemento de barra em conjunto com um elemento de interface para análise não linear de vigas mistas de aço e concreto com interação parcial. O objetivo é montar um algoritmo que utilize essa ferramenta de análise para dimensionar vigas mistas de aço e concreto buscando um projeto otimizado em termos de gastos dos materiais. Definidos os vãos, os apoios, os carregamentos para verificação última e de serviço, um algoritmo de otimização é utilizado para definir as dimensões da seção transversal retangular da laje de concreto, do perfil I de aço e das barras de reforço da laje de concreto, de forma que a quantidade desses materiais seja mínima, garantindo a segurança estrutural, considerando os estados limites último e de serviço. As restrições de projeto são aquelas definidas em normas referentes ao dimensionamento de elementos lineares de concreto, aço ou misto. A função objetivo é definida como sendo o custo por metro linear da viga mista, obtida a...

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A family of interface elements for the analysis of composite beams with interlayer slip

Cited by 34 publications

References 21 publications

Out-of-plane behaviour of partially composite or sandwich beams by exact and Finite Element Methods

Out-of-plane behaviour of partially composite or sandwich beams by exact and Finite Element Methods

Finite Element Modelling of a Composite Shell with Shear Connectors

Optimized dimensioning of steel-concrete composite beams

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