scholarly journals Finite Element Modelling and Design of Underground Metro Station

2020 ◽  
Vol 9 (3) ◽  
pp. 98-105
Keyword(s):  
Finite Element ◽  
Finite Element Modelling ◽  
Pressure Coefficient ◽  
Earth Pressure ◽  
Design Parameters ◽  
Spring Stiffness ◽  
Element Analysis ◽  
Metro Station ◽  
Element Modelling ◽  
Analysis And Design

Underground metro stations are influenced by critical external loads such as earth pressure, hydrostatic pressure, bedding spring stiffness and backfill soil cover. Optimization, constructability and sustainability is a need, which demands thorough critical analysis and design. The variation in design parameters like ground water level (GWT), bedding spring stiffness (ks) and earth pressure coefficient (ko) needs to be covered through the analysis. Accordingly, design demands the upper bound and lower bound parameters considerations for finite element analysis. This paper presents, best practices for finite element modelling approach such as mesh configuration, loading, geometry, support arrangement; analysis approach such as analysis parameters, solvers and design idealization of critical forces such as bending moment, shear force and axial force at wall slab junction and slab column junction based on the international codes such as Euro-code and Indian codes. Also paper compares the behavior of 2D and 3D finite element modelling of underground metro station.

Finite element modelling of the manufacturing process for aluminium aerosol cans

2007 ◽  
Vol 221 (4) ◽  
pp. 265-274 ◽  
Author(s):  
S J Hardy ◽  
R Abdusslam
Keyword(s):  
Finite Element ◽  
Finite Element Modelling ◽  
Extrusion Process ◽  
Physical Problem ◽  
Element Analysis ◽  
Element Modelling ◽  
Linear Finite Element ◽  
Aerosol Cans ◽  
Potential Failure ◽  
Modelling Process

The current paper provides an illustration of the application of non-linear finite element analysis to the modelling of the extrusion and forming processes, using the manufacture of a one-piece aluminium aerosol can by the back extrusion process as an example. It also demonstrates how this numerical method can be used to predict the axial buckling of such cans, which is a potential failure mode during manufacture. The various stages of the modelling process are described and finite element predictions are presented. Where possible, these predictions are compared with experimental results. The paper also highlights some of the modelling issues associated with analyses of this type and provides recommendations as to how the correlation between the model and the actual physical problem can be improved.

Numerical Analysis of Flush End-Plate Beam-to-Column Connection using Mathematical Model and Finite Element Analysis

2021 ◽  
Author(s):  
Mohammad Haroon Ehsan ◽  
Mutlu Seçer
Keyword(s):  
Mathematical Model ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Analysis ◽  
Numerical Models ◽  
Design Parameters ◽  
Engineering Practice ◽  
Element Analysis ◽  
Analysis And Design ◽  
End Plate

In the conventional analysis and design of steel structures, beam-to-column connections are generally assumed as entirely rigid or perfectly pinned. This assumption simplifies analysis and design steps and preferred extensively in structural engineering practice. However, experimental studies conducted in recent years have revealed that handling some of the beam-to-column connections as entirely rigid or perfectly pinned does not give realistic results. In fact, most of the connections used in current practice have some certain amount of stiffness which fall between the extreme cases of entirely rigid and perfectly pinned. In order to model the beam-to-column connections properly, several researchers have proposed various mathematical models based on experimental results. In these models, moment rotation relations of beam-to-column connections are defined according to the type of connection. In this study, moment-rotation behaviors of beam-to-column connections formed by flush end-plate are investigated using finite element analysis and a well-known practical mathematical model. Moreover, numerical analysis outcomes were compared with the test results of a reference study from the literature. This paper showed the importance of structural design parameters in determining moment-rotation relationship of flush end-plate type of beam-to-column connections and evaluated the efficiency of the practical numerical models.

Finite Element Investigation on Ultimate Strength of Bolted Connections

2012 ◽  
Vol 166-169 ◽  
pp. 1157-1163
Author(s):  
Wael Elleithy ◽  
Choon Kiat Lim
Keyword(s):  
Finite Element ◽  
Ultimate Strength ◽  
Finite Element Modelling ◽  
Stress Distributions ◽  
Bolted Connections ◽  
Element Analysis ◽  
Bolted Connection ◽  
Element Modelling ◽  
Load Distributions ◽  
The Finite Element Analysis

In this paper, the ultimate behaviour of bolted connections and the effect of various configurations of bolted connections on the ultimate strength are thoroughly investigated. Through finite element modelling, the stress distributions, bolt load distributions, and the effect of bolt sizes and bolt arrangements are studied in detail. The finite element analysis results show that the square shape arrangement of a bolted connection has a higher ultimate strength than that of the diamond shape arrangement. The ultimate strength of bolted connection increases as the bolts size increase until a limitation of improvement in strength is reached.

Finite Element Analysis and Design of a Trochoidal-Type Machine Without Apex Seals

1995 ◽  
Author(s):  
Kannan Venkatesh ◽  
John B. Shung
Keyword(s):  
Finite Element ◽  
Iterative Procedure ◽  
Element Model ◽  
Design Parameters ◽  
Dimensional Model ◽  
Element Analysis ◽  
Analysis And Design ◽  
Type Machine ◽  
Free Body ◽  
The Finite Element Model

Abstract A two-dimensional model for a trochoidal-type machine without apex seals using finite element method has been developed with the help of Cosmos/M V1.65, and is evaluated by using a classical free-body technique. The minimum running clearance required to avoid contact between rotor and chamber is determined by an iterative procedure using the finite element model. The variation in the minimum required running clearance with the variation in the design parameters is studied. Guidelines for using the results of this study for an optimal design of a trochoidal-type machine without apex seals are presented.

Finite Element Analysis and Design of a Trochoidal-Type Machine Without Apex Seals

1998 ◽  
Vol 120 (1) ◽  
pp. 67-72 ◽  
Author(s):  
V. Kannan ◽  
J. B. Shung
Keyword(s):  
Finite Element ◽  
Iterative Procedure ◽  
Element Model ◽  
Design Parameters ◽  
Dimensional Model ◽  
Element Analysis ◽  
Analysis And Design ◽  
Type Machine ◽  
Free Body ◽  
The Finite Element Model

A two-dimensional model for a trochoidal-type machine without apex seals using finite element method has been developed with the help of Cosmos/M V1.65, and is evaluated by using a classical free-body technique. The minimum running clearance required to avoid contact between rotor and chamber is determined by an iterative procedure using the finite element model. The variation in the minimum required running clearance with the variation in the design parameters is studied. Guidelines for using the results of this study for an optimal design of a trochoidal-type machine without apex seals are presented.

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