Parametric study of semi-rigid composite connections with 3-D finite element approach

2007 ◽  
Vol 29 (6) ◽  
pp. 888-898 ◽  
Author(s):  
Feng Fu ◽  
Dennis Lam ◽  
Jianqiao Ye
Keyword(s):  
Finite Element ◽  
Parametric Study ◽  
Finite Element Approach ◽  
Element Approach ◽  
Composite Connections

A Parametric Study on the Strain Concentration in Field Joint of Concrete Coated Pipelines Using Finite Element Method

2009 ◽  
Author(s):  
Nikzad Nourpanah ◽  
Farid Taheri
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
Concentration Factor ◽  
Geometrical Parameters ◽  
Fe Method ◽  
Strain Concentration ◽  
Finite Element Approach ◽  
Geometrical Properties ◽  
Element Approach

This paper aims at investigating the strain concentration in the field joints of concrete coated pipelines. A parametric study, using the finite element (FE) method, is conducted to investigate the effect of different geometric and material related parameters on the strain concentration. The selected parameters are believed to be the most influencing ones, and their variations selected as such, so to reflect practical situations. The finite element approach used in this study was discussed and validated by the authors in their earlier work. In this study, twenty three FE models are analyzed and their results are processed and presented in terms of variation of Strain Concentration Factor (SCF) versus the considered parameters, thus enabling us to examine the trend of variation of SCF with respect to each parameter. The observed trends and their underlying mechanics are described. Furthermore, a non-dimensional “geometric parameter” is introduced, which lumps the geometrical parameters investigated into a single parameter, such that it could adequately describe the variations of SCF. It is observed that a threshold exists for this parameter, beyond which the SCF can be deemed constant for design purposes, and below which the SCF would become very sensitive to the geometrical properties.

A Finite Element Approach to the Transient Dynamics of Rolling Tires with Emphasis on Rolling Noise Simulation4

2007 ◽  
Vol 35 (3) ◽  
pp. 165-182 ◽  
Author(s):  
Maik Brinkmeier ◽  
Udo Nackenhorst ◽  
Heiner Volk
Keyword(s):  
Finite Element ◽  
Traffic Noise ◽  
Complex Eigenvalue ◽  
Arbitrary Lagrangian Eulerian ◽  
Finite Element Approach ◽  
Road Systems ◽  
Element Approach ◽  
Road Surface Roughness ◽  
Complex Eigenvalue Analysis ◽  
Rolling Noise

Abstract The sound radiating from rolling tires is the most important source of traffic noise in urban regions. In this contribution a detailed finite element approach for the dynamics of tire/road systems is presented with emphasis on rolling noise prediction. The analysis is split into sequential steps, namely, the nonlinear analysis of the stationary rolling problem within an arbitrary Lagrangian Eulerian framework, and a subsequent analysis of the transient dynamic response due to the excitation caused by road surface roughness. Here, a modal superposition approach is employed using complex eigenvalue analysis. Finally, the sound radiation analysis of the rolling tire/road system is performed.

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