scholarly journals Numerical model of beam-to-column composite connection between slim floor system and composite column

2020 ◽  
Vol 13 (2) ◽  
pp. 348-379
Author(s):  
R. F. F. KOCHEM ◽  
S. de NARDIN
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Composite Beam ◽  
Negative Reinforcement ◽  
Numerical Approach ◽  
Steel Tube ◽  
The Moment ◽  
Composite Connections ◽  
Floor System ◽  
Good Agreement

Abstract The slim floor system has been used mainly due to the structural and constructive advantages of it, such as the capacity to overcome large spans with the low height of the composite floor system. There is a lack of finite element modelling researches of composite connections between the slim floor system and columns, especially with the concrete infilled steel tube columns. This paper presents the numerical approach based on the solid modelling, for the simulation of the nonlinear structural behavior of composite connection between partially encased composite beam and concrete infilled steel tube column; in this model, the composite beam represents the slim floor. The ABAQUS finite element code was used to investigate the behavior of composite connection that consists of a shear steel plate and negative reinforcement of the composite slab. In this paper, the authors discusses the procedures to the numerical model construction including finite elements and boundary conditions. Besides, the influence of stress-strain relationships for concrete and steel and the parameters that defines each model are presented and discussed, as well as the different steel to concrete interface conditions. Based on the results obtained, the effectiveness of the numerical model developed was verified against experimental results showing a good agreement response for the Moment vs. Rotation response, as well as the moment resistance of the composite connection.

Behaviour of Composite Beam with Trapezoid Web Profiled Steel Section in Sub-Assemblage Frame

2011 ◽  
Vol 250-253 ◽  
pp. 1271-1274
Author(s):  
Saggaff Anis ◽  
M.Md. Tahir ◽  
Arizu Sulaiman ◽  
Poi Ngian Shek ◽  
Cher Siang Tan ◽  
...  
Keyword(s):  
Composite Beam ◽  
Loading Capacity ◽  
End Plate ◽  
Corrugated Web ◽  
Extended End Plate ◽  
The Moment ◽  
Composite Connections ◽  
Steel Section

The objective of this paper is to present the behaviour of composite beam using Trapezoid Web Profiled (TWP) steel section by determining the moment resistance and the deflection of the beam with composite and non-composite connections. The TWP steel section is a built up section where the flange is of S355 steel section and the corrugated web of S275 steel section. Three full scales testing setting-up as sub-assemblage frame have been carried out. It was concluded that the use of composite connection and extended end-plate has reduced significantly the deflection and has significantly increased the loading capacity of composite beam.

scholarly journals Numerical approach of the bond stress behavior of steel bars embedded in self-compacting concrete and in ordinary concrete using beam models

2013 ◽  
Vol 6 (3) ◽  
pp. 499-512 ◽  
Author(s):  
F.M. Almeida Filho ◽  
M. K. El Debs ◽  
A.L.H.C. El Debs
Keyword(s):  
Numerical Model ◽  
Constitutive Relations ◽  
Numerical Approach ◽  
Reinforced Concrete Beams ◽  
Experimental Program ◽  
Self Compacting Concrete ◽  
Bond Behavior ◽  
Ordinary Concrete ◽  
Steel Bars ◽  
Good Agreement

The present study evaluates the bond behavior between steel bars and concrete by means of a numerical analysis based on Finite Element Method. Results of a previously conducted experimental program on reinforced concrete beams subjected to monotonic loading are also presented. Two concrete types, self-compacting concrete and ordinary concrete, were considered in the study. Non-linear constitutive relations were used to represent concrete and steel in the proposed numerical model, aiming to reproduce the bond behavior observed in the tests. Experimental analysis showed similar results for the bond resistances of self-compacting and ordinary concrete, with self-compacting concrete presenting a better performance in some cases. The results given by the numerical modeling showed a good agreement with the tests for both types of concrete, especially in the pre-peak branch of the load vs. slip and load vs. displacement curves. As a consequence, the proposed numerical model could be used to estimate a reliable development length, allowing a possible reduction of the structure costs.

A Dual-Scale Numerical Model for the Diffusive Behaviour Prediction of Biocomposites Based on Randomly Oriented Fibres

2022 ◽  
Author(s):  
Mustapha Nouri ◽  
Mahfoud Tahlaiti
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Element Model ◽  
Numerical Approach ◽  
Optical Microscope ◽  
Diffusion Problem ◽  
Finite Element Calculation ◽  
Element Calculation ◽  
Calculation Software ◽  
Diffusive Behaviour

This work aims to present a multi-scale numerical approach based on a 2D finite element model to simulate the diffusive behaviour of biocomposites based on randomly dispersed Diss fibres during ageing in water. So, first of all, the diffusive behaviour of each phase (fibres/matrix) as well as of the biocomposite was determined experimentally. Secondly, the microstructure of the biocomposite was observed by optical microscope and scanning electron microscope (SEM), and then regenerated in a Digimat finite element calculation software thanks to its own fibre generator: "Random fibre placement". Finally, the diffusion problem based on Fick's law was solved on the Abaqus finite element calculation software. The results showed an excellent agreement between the experiment and the numerical model. The numerical model has enabled a better understanding of the diffusive behaviour of water within the biocomposite, in particular the effect of the fibre/matrix interface. In terms of durability, the layered structure of this biocomposite has proven to be effective in protecting the plant fibres from hydrothermal transfer, which preserves the durability of the material.

Collapse of Sharp-Notched 6061-T6 Aluminum Alloy Tubes Under Cyclic Bending

2016 ◽  
Vol 16 (07) ◽  
pp. 1550035 ◽  
Author(s):  
Chen-Cheng Chung ◽  
Kuo-Long Lee ◽  
Wen-Fung Pan
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Cyclic Bending ◽  
Finite Element Software ◽  
Buckling Failure ◽  
Simulation Results ◽  
Number Of Cycles ◽  
The Moment ◽  
The Relationship ◽  
Good Agreement

The mechanical behavior and buckling failure of sharp-notched 6061-T6 aluminum alloy tubes with different notch depths subjected to cyclic bending are experimentally and theoretically investigated. The experimental moment–curvature relationship exhibits an almost steady loop from the beginning of the first cycle. However, the ovalization–curvature relationship exhibits a symmetrical, increasing, and ratcheting behavior as the number of cycles increases. The six groups of tubes tested have different notch depths, from which two different trends can be observed from the relationship between the controlled curvature and the number of cycles required to ignite buckling. Finite element software ANSYS is used to simulate the moment–curvature and ovalization–curvature relationships. Additionally, a theoretical model is proposed for simulation of the controlled curvature-number of cycles concerning the initiation of buckling. Simulation results are compared with experimental test data, which shows generally good agreement.

A Numerical Approach for Simulation of Rock Fracturing in Engineering Blasting

2010 ◽  
Vol 1 (2) ◽  
pp. 38-58
Author(s):  
Mani Ram Saharan ◽  
Hani S. Mitri
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Modelling ◽  
Plane Stress ◽  
Numerical Approach ◽  
The Other ◽  
Rock Fracturing ◽  
Experimental Tool ◽  
Element Elimination ◽  
Good Agreement

An approach for simulation of rock fracturing as a result of engineering blasting is presented in this paper. The approach uses element elimination technique within the framework of finite element method to capture the physics of engineering blasting. The approach does not require pre-placement of fracture paths which is the severe drawback of the other existing methodologies and approaches. Results of plane stress modelling for isotropic brittle rock behaviour are presented in this paper and these results are in good agreement with the existing knowledge base. The authors also review the existing approaches of numerical modelling to compare the efficacy of the element elimination technique. It is anticipated that the further developments with this approach can prove to be good experimental tool to improve engineering blasting operations.

Finite Element Numerical Simulation of Two-Dimensional Ground Water Solute Migration Question

2011 ◽  
Vol 301-303 ◽  
pp. 352-356 ◽  
Author(s):  
Meng Ling Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Numerical Model ◽  
Solute Transport ◽  
Ground Water ◽  
Calculated Result ◽  
Two Dimensional ◽  
Finite Element Numerical Simulation ◽  
Good Agreement

The finite element numerical model of 2-D solute transport in ground water with variable was established under the condition of variety of the velocity of the movement of water is not too fast,and was carried on by the finite element numerical simulation method.the numerical simulation shows that the calculated result is in good agreement with the experiment result.

Experimental Tests on Composite Beam with Various Slab Systems

2012 ◽  
Vol 166-169 ◽  
pp. 33-36
Author(s):  
Anis Saggaff ◽  
M.Md. Tahir ◽  
Norwati Jamaluddin ◽  
Poi Ngian Shek ◽  
Cher Siang Tan
Keyword(s):  
Composite Beam ◽  
Experimental Tests ◽  
Composite Beams ◽  
Full Scale ◽  
Structural Behaviour ◽  
Theoretical Predictions ◽  
Floor Systems ◽  
Staggered Arrangement ◽  
The Moment ◽  
Good Agreement

This paper presents the structural behaviour of composite beams with various floor systems tested in full-scale arrangement. Six full-scale specimens with staggered and non-staggered arrangement of studs on the composite beams were tested until failure. The moment capacities obtained from the experiment are compared with the theoretical values established from BS 5950 and Eurocode 4. The experimental results showed good agreement with theoretical predictions while no significant influences were found between staggered and non-staggered arrangement of studs.

scholarly journals Finite Element Modelling of the Residual Stresses Induced in Thermally Deposited Coatings

2014 ◽  
Vol 59 (2) ◽  
pp. 593-599 ◽  
Author(s):  
J. Zimmerman
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Deposition Process ◽  
Titanium Coating ◽  
The Finite Element Method ◽  
Second Stage ◽  
Residual Stress State ◽  
Detonation Method ◽  
Progressive Growth ◽  
Good Agreement

Abstract A numerical model based on the finite element method has been constructed with the aim to examine the residual stress state induced during thermal deposition of coatings on various substrates. The first stage of the modelling was designed to solve the problem of the high-velocity impact of a single spherical particle on a substrate using the “dynamics-explicit” module of the FEM ADINA software. In the second stage, the deposition process was simulated as a progressive growth of the coating until it achieved the desired thickness, and then the entire system was cooled to the ambient temperature. This problem was assumed to be thermo-mechanical and was also solved with the use of the FEM ADINA software. The samples assumed in the computations were cylindrical in shape and were built of a titanium coating, with three different thicknesses, deposited on an Al2O3 ceramic substrate by the detonation method. The numerical model was verified experimentally by measuring the deflection of the samples after their cooling. The computed values appeared to be in good agreement with those obtained experimentally.

scholarly journals Theoretical Bending Collapse of Hat-Section Tubes

2018 ◽  
Vol 7 (4.26) ◽  
pp. 153
Author(s):  
Hafizan Hashim ◽  
Hanita Hashim ◽  
Arif Affendi Jamal ◽  
M. A.M. Jusoh
Keyword(s):  
Finite Element ◽  
Analytical Solution ◽  
Plastic Region ◽  
Tubular Structures ◽  
Pure Bending ◽  
Analysis Technique ◽  
Collapse Model ◽  
The Moment ◽  
Relationship Of ◽  
Good Agreement

This paper presents an attempt to modify an existing theoretical model to predict the bending collapse response of hat-section tubular structures. The analytical collapse model was based on Kim and Reid. Additional hinge lines created during deformation of the tube were examined and integrated with existing model to forming a modified analytical solution. Variation of the hinge moments were solved using limit analysis technique. Procedure for developing the finite element (FE) models of tube specimens was also presented. Moment-rotation characteristics from pure bending simulation were compared with analytical model and good agreement was achieved. The average of differences between simulation and calculation were found to be <5% within plastic region. In conclusion, the modified analytical solution has adequate capability to predict the moment-rotation relationship of hat-section tubes subject to pure bending.. 

Residual Strength of Tubular Columns With Localized Thickness Loss

2021 ◽  
Author(s):  
Mostafa Atteya ◽  
Ove Mikkelsen ◽  
Narve Oma ◽  
Gerhard Ersdal
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Experimental Work ◽  
Nonlinear Finite Element ◽  
Ultimate Capacity ◽  
Axial Loads ◽  
Element Analysis ◽  
Tubular Columns ◽  
Nonlinear Finite Element Methods ◽  
Good Agreement

Abstract This paper provides a comprehensive finite element analysis to investigate the ultimate capacity of corroded members under concentric axial loads. The paper investigates previous experimental work on stocky and slender tubular columns with simulated patch corrosion and provides a numerical model that can estimate the columns capacities. Further, a parametric study is performed to investigate the effect of geometric parameters such as location, height, and width of corrosion patch on the ultimate capacity of corroded columns. Finally, the paper presents a comparison between laboratory tests to the formulae of superseded standards and numerical analysis using nonlinear finite element methods. The numerical model proposed in this paper show good agreement with the results from the experimental work.

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