Forming of AA5182-O and AA5754-O at elevated temperatures using coupled thermo-mechanical finite element models

2007 ◽  
Vol 23 (5) ◽  
pp. 841-875 ◽  
Author(s):  
Nader Abedrabbo ◽  
Farhang Pourboghrat ◽  
John Carsley
Keyword(s):  
Finite Element ◽  
Elevated Temperatures ◽  
Finite Element Models

scholarly journals PARAMETRIC STUDIES ON THE COMPONENT-BASED APPROACH TO MODELLING BEAM BOTTOM FLANGE BUCKLING AT ELEVATED TEMPERATURES

2016 ◽  
Vol 56 (2) ◽  
pp. 132
Author(s):  
Guan Quan ◽  
Shan-Shan Huang ◽  
Ian Burgess
Keyword(s):  
Finite Element ◽  
Analytical Model ◽  
Elevated Temperatures ◽  
Finite Element Models ◽  
Bottom Flange ◽  
Class 1 ◽  
Shear Buckling ◽  
Post Buckling ◽  
Parametric Studies ◽  
Better Than

<p>In this study, an analytical model of the combination of beam-web shear buckling and bottom-flange buckling at elevated temperatures has been introduced. This analytical model is able to track the force-deflection path during post-buckling. A range of 3D finite element models has been created using the ABAQUS software. Comparisons have been carried out between the proposed analytical model, finite element modelling and an existing theoretical model by Dharma (2007). Comparisons indicate that the proposed method is able to provide accurate predictions for Class 1 and Class 2 beams, and performs better than the existing Dharma model, especially for beams with high flange-to-web thickness ratios. A component-based model has been created on the basis of the analytical model, and will in due course be implemented in the software Vulcan for global structural fire analysis.</p>

scholarly journals A Component-based Approach to Modelling Beam Bottom Flange Buckling at Elevated Temperatures

2016 ◽  
Author(s):  
Guan Quan ◽  
Shan-Shan Huang ◽  
Ian Burgess
Keyword(s):  
Finite Element ◽  
Analytical Model ◽  
Elevated Temperatures ◽  
Finite Element Models ◽  
Bottom Flange ◽  
Class 1 ◽  
Slender Beams ◽  
Shear Buckling ◽  
Post Buckling ◽  
Better Than

In this study, an analytical model of the combination of beam-web shear buckling and bottom-flange buckling at elevated temperatures has been created. This analytical model is able to track the force-deflection path in the post-buckling stage. A range of 3D finite element models has been created using the ABAQUS software. Comparisons have been carried out between the proposed analytical model, finite element modelling and the existing Dharma’s theoretical model. Comparisons indicate that the proposed method is able to provide with accurate predictions for Class 1 and Class 2 beams, and performs better than the existing model, especially for slender beams. A component-based model has been created based on the analytical model, and in due course to be implemented into the software Vulcan for global structural fire analysis.

A Finite Element Analysis of the General Rolling Contact Problem for a Viscoelastic Rubber Cylinder

1988 ◽  
Vol 16 (1) ◽  
pp. 18-43 ◽  
Author(s):  
J. T. Oden ◽  
T. L. Lin ◽  
J. M. Bass
Keyword(s):  
Finite Element ◽  
Variational Principles ◽  
Standing Waves ◽  
Rolling Contact ◽  
Finite Element Models ◽  
Viscoelastic Cylinder ◽  
Element Analysis ◽  
Elastic Rubber ◽  
Frictional Effects ◽  
Rough Foundation

Abstract Mathematical models of finite deformation of a rolling viscoelastic cylinder in contact with a rough foundation are developed in preparation for a general model for rolling tires. Variational principles and finite element models are derived. Numerical results are obtained for a variety of cases, including that of a pure elastic rubber cylinder, a viscoelastic cylinder, the development of standing waves, and frictional effects.

Affordable structural optimization for large-size dynamic finite element models

1997 ◽  
Author(s):  
Francois Hemez ◽  
Emmanuel Pagnacco ◽  
Francois Hemez ◽  
Emmanuel Pagnacco
Keyword(s):  
Finite Element ◽  
Structural Optimization ◽  
Finite Element Models ◽  
Dynamic Finite Element ◽  
Large Size
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