Finite Element Analysis of Giant Earthmover Tires

1982 ◽  
Vol 55 (4) ◽  
pp. 1044-1054 ◽  
Author(s):  
J. De Eskinazi ◽  
R. A. Ridha
Keyword(s):  
Finite Element ◽  
Distribution Patterns ◽  
Integrated Approach ◽  
Design Parameters ◽  
Element Analysis ◽  
Finite Element Technique ◽  
The Road ◽  
Large Size ◽  
Load Distributions ◽  
Element Technique

Abstract The stress analysis of an off-the-road earthmover tire subjected to inflation pressure was carried out by the finite element technique by using eight-noded isoparametric toroidal elements. A control design, as well as two variations of this design in which cord angles and end counts were varied, have been examined. Deformations and stresses within the tire were predicted. The results show that variations in the cord angles and end counts may lead to significant changes in the deformation and cord load distribution patterns of the tire. Furthermore, it was observed that, because of the relatively large size of the tire, minor variations in the green cord angles (for example, due to production variations) can lead to magnified differences in the values of the cured angles and thereby cured end counts. These, in turn, can significantly affect the deformation and cord load distributions within the tire. The finite element technique used in this study provides an integrated approach for the structural analysis of tires. Detailed responses to various loading conditions and different changes in the design parameters were computed.

Elasto-plastic finite element analysis of welded truss connections

1982 ◽  
Vol 9 (3) ◽  
pp. 399-412 ◽  
Author(s):  
William Chung-Ping Lau ◽  
John L. Dawe
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Parameters ◽  
Element Analysis ◽  
Finite Element Technique ◽  
Design Office ◽  
Parametric Studies ◽  
Thickness Variations ◽  
Element Technique ◽  
Simple Interaction

A finite element technique based on an incremental tangent stiffness method is employed herein to analyze the behavior of welded truss connections subjected to combined tension and shear. A computer program named ELAPLAS (ELAsto-PLAStic finite element analysis) is developed to simulate the load–deformation behavior and to predict the ultimate tensile capacity of a structural tee in a welded truss joint subjected to a prescribed transverse shear load. Analytical studies were carried out to investigate the interaction of tension and shear in welded truss connections. The analytical results obtained are compared with available test data to verify the validity of the proposed finite element technique. Results of parametric studies are presented to illustrate the significance of various design parameters in welded truss connections. Such parameters as material properties, thickness variations of structural tee web and flange, and the truss configurations are investigated. As a result of the present work, simple interaction equations of combined tension and shear are developed and suggested for design office use.

Finite Element Analysis on the Deformation of Energy-Saving Wire-Mesh Frame Wallboard

2014 ◽  
Vol 501-504 ◽  
pp. 731-735
Author(s):  
Li Zhang ◽  
Kang Li
Keyword(s):  
Finite Element ◽  
Energy Saving ◽  
Theoretical Basis ◽  
Steel Wire ◽  
Wire Mesh ◽  
Design Parameters ◽  
Element Analysis ◽  
Finite Element Program ◽  
Element Program ◽  
Influence Degree

This paper analyzes the influence degree of related design parameters of wire-mesh frame wallboard on deformation through finite element program, providing theoretical basis for the design and test of steel wire rack energy-saving wallboard.

Determination of Stress Concentration Around an Oblique Hole by a Finite-Element Technique

1983 ◽  
Vol 105 (2) ◽  
pp. 206-212 ◽  
Author(s):  
Hua-Ping Li ◽  
F. Ellyin
Keyword(s):  
Finite Element ◽  
Stress Concentration ◽  
Maximum Stress ◽  
Plate Thickness ◽  
Two Dimensional ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Parametric Studies ◽  
Element Technique

A plate weakened by an oblique penetration of a circular cylindrical hole has been investigated. The stress concentration around the hole is determined by a finite-element method. The results are compared with experimental data and other analytical works. Parametric studies of effects of angle of inclination, plate thickness, and width are performed. The maximum stress concentration factor (SCF) obtained from the finite-element analysis is higher than experimental results, and this deviation increases with the increase of angle of skewness. The major reason for this difference is attributed to the shear-action between layers parallel to the plate surface which cannot be directly included in the two-dimensional elements. An empirical formula is derived which accounts for the shear-action and renders the finite-element predictions in line with experimentally observed data.

A Study of Wall Ironing by the Finite Element Technique

1978 ◽  
Vol 100 (1) ◽  
pp. 31-36 ◽  
Author(s):  
E. I. Odell
Keyword(s):  
Finite Element ◽  
Lower Bound ◽  
Cone Angle ◽  
Reduction Ratio ◽  
Operating Parameters ◽  
Finite Element Technique ◽  
Elastic Plastic ◽  
Maximum Reduction ◽  
Load Displacement ◽  
Element Technique

Wall ironing has been analyzed using an elastic-plastic finite element technique. The effects that the ironing ring semi-cone angle and friction have on the maximum reduction ratio are studied in detail. Stress contours are given for a typical set of operating parameters. Several ram load/displacement curves are provided and compared with upper and lower bound loads.

The Effect of Initial Forces on the Hydroelastic Vibration and Stability of Planar Curved Tubes

1974 ◽  
Vol 41 (2) ◽  
pp. 355-359 ◽  
Author(s):  
J. L. Hill ◽  
C. G. Davis
Keyword(s):  
Finite Element ◽  
Internal Pressure ◽  
Constant Curvature ◽  
Elastic Limit ◽  
Center Line ◽  
Finite Element Technique ◽  
Line Shapes ◽  
Circular Arcs ◽  
Out Of Plane ◽  
Element Technique

The effect of initial forces on the vibration and stability of curved, clamped, fluid conveying tubes is analyzed by the finite-element technique. The tubes are initially planar with general center-line shapes approximated by constant curvature arcs. The effect of internal pressure is included. Numerical results are presented with, and without, the effects of the initial in-plane forces, for circular arcs S, L, and spiral configurations. Neglecting initial forces results in out-of-plane buckling, while including these forces prevents buckling within the elastic limit, in all configurations studied.

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