scholarly journals Comparative Analysis of Static Loading Performance of Rigid and Flexible Road Wheel based on Finite Element Method

2020 ◽  
Vol 70 (1) ◽  
pp. 41-46
Author(s):  
Yaoji Deng ◽  
Youqun Zhao ◽  
Mingmin Zhu ◽  
Zhen Xiao ◽  
Qiuwei Wang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Static Loading ◽  
Maximum Stress ◽  
Three Dimensional ◽  
Element Model ◽  
Vertical Load ◽  
New Type ◽  
Stress And Deformation ◽  
Nonlinear Finite Element Model

To overcome the shortcomings of traditional rigid road wheel, such as poor damping effect and low load-bearing efficiency, a new type of flexible road wheel, having a unique suspension-bearing mode, was introduced. The three-dimensional nonlinear finite element model of rigid and flexible road wheel, considering the triple nonlinear characteristics of geometry, material and contact, is established for numerical investigation of static loading performance. The accuracy of the finite element model of the rigid and flexible road wheel is verified by static loading experiment. The static loading performance of the rigid and flexible road wheels is numerically analyzed. The influence of vertical load on maximum stress and deformation of the rigid and flexible wheels is also studied. The results show that the contact pressure uniformity of the flexible road wheel is better than that of the rigid road wheel under the static vertical load, but the maximum stress and deformation of the flexible road wheel are greater than that of the rigid road wheel. However, this problem can be solved by increasing the number of hinge sets and optimising the joints. The research results provide theoretical basis for replacing rigid road wheel with flexible road wheel, and also provide reference for structural optimisation of flexible road wheel.

A Three-Dimenstional Nonlinear Finite Element Model of Lumbar Intervertebral Joint in Torsion

1987 ◽  
Vol 109 (3) ◽  
pp. 200-209 ◽  
Author(s):  
K. Ueno ◽  
Y. K. Liu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Stress Distributions ◽  
Cause Of Failure ◽  
Disk Prolapse ◽  
Nonlinear Finite Element Model

Torsion as a cause of failure in the lumbar intervertebral joint was studied using a three-dimensional nonlinear finite element model. The role of facets and ligaments as well as the stress distributions in the posterior elements, the disk, the ligaments, and the vertebral body were examined. For physiological range of torsion, the facets carried 10 to 40 percent of the torque. The fiber stresses in the disk were the highest at the lateral margin of the outer layer of the annulus. Therefore, torsion itself is unlikely to cause posterior or posterolateral disk prolapse.

Three-Dimensional Nonlinear Finite Element Model for Simulating Pavement Response: Study at Canterbury Accelerated Pavement Testing Indoor Facility, New Zealand

2003 ◽  
Vol 1823 (1) ◽  
pp. 153-162 ◽  
Author(s):  
Mofreh F. Saleh ◽  
Bruce Steven ◽  
David Alabaster
Keyword(s):  
Finite Element ◽  
New Zealand ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
3D Fem ◽  
Accelerated Pavement Testing ◽  
Pavement Testing ◽  
Nonlinear Finite Element Model

A three-dimensional nonlinear finite element model (3D-FEM) was developed as part of a study of the effect of increasing axle load and tire pressure on pavement deterioration. The measured strains, interface stresses, and deflections were collected from the instrumented Canterbury Accelerated Pavement Testing Indoor Facility in New Zealand. In addition, two multilayer elastic models were used to compare the values from the finite element simulation and the actual measurements. The first elastic multilayer model was developed with ELSYM5 software, and the second model was developed with CIRCLY software. CIRCLY differs from ELSYM5 in the ability to account for material anisotropy; ELSYM5 considers the pavement materials to be isotropic. The actual strains and deformations were measured by Emu strain gauges embedded at different depths in the base and subgrade materials. Both the unbound granular base and the subgrade materials were modeled in 3D-FEM as elastic plastic materials. The results showed that for the unbound base layer, the strains calculated from the two elastic models were in reasonable agreement with the values measured in the instrumented test track, while the 3D-FEM model tended to overestimate the strains at the bottom of the base. While none of the models provided a perfect fit to the measured strains in the subgrade layer because the subgrade is less homogenous than assumed, 3D-FEM provided the closest fit. Also, CIRCLY provided better results than ELSYM5, which underestimated the displacement values compared with values obtained with CIRCLY and 3D-FEM.

Achieving Uniform Clamp Load in Gasketed Bolted Joints Using a Nonlinear Finite Element Model

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
Sayed A. Nassar ◽  
Zhijun Wu ◽  
Xianjie Yang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Elastic Interaction ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Bolted Joints ◽  
Model Parameters ◽  
Loading And Unloading ◽  
Nonlinear Finite Element Model

A three-dimensional nonlinear finite element model is developed for achieving a uniform clamp load in gasketed bolted joints. The model is used for both multiple and single pass tightening patterns. Geometric nonlinearity of the gasket is taken into account and plastic model parameters are experimentally determined. The effect of the tightening pattern, gasket loading and unloading history, and the preload level is investigated. The validity of the FEA methodology is experimentally verified. This study helps improve the reliability of gasketed bolted joints by minimizing the bolt-to-bolt clamp load variation caused by elastic interaction among the various bolts in the joint during initial joint-bolt-up.

On the Three-Dimensional Computation of Steel-Belted Tires

1986 ◽  
Vol 14 (2) ◽  
pp. 116-124 ◽  
Author(s):  
H. Rothert ◽  
R. Gall
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Geometrically Nonlinear ◽  
Linear Elastic ◽  
Shear Strains ◽  
Nonlinear Finite Element Model ◽  
The Finite Element Model

Abstract A geometrically-nonlinear finite element model of a complete tire is used in an analysis for inflation and footprint loadings. Each reinforced layer of the tire is approximated as being homogeneous, orthotropic, and linear elastic. The finite element model used in the analysis allows the computation of interply shear strains due to inflation and footprint loads. Some numerical results on loaded tires are also presented and compared with those obtained experimentally.

A Dynamic, Nonlinear Finite-Element Model of a Human Leg

1979 ◽  
Vol 101 (3) ◽  
pp. 176-184 ◽  
Author(s):  
T. K. Hight ◽  
R. L. Piziali ◽  
D. A. Nagel
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Complex Loading ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Cross Sectional ◽  
Downhill Skiing ◽  
Stiffness Characteristics ◽  
Nonlinear Finite Element Model

The development of a dynamic, nonlinear finite-element model of a human leg is presented. The model is designed to accommodate large three-dimensional displacements and rotations, to accurately reflect the nonlinear stiffness characteristics of the knee joint, and to facilitate efficient stress-level calculations. Numerical examples are presented which demonstrate the nonlinear capabilities of the model. In addition, a brief example illustrates the ability of the model to respond to a complex loading history measured during a downhill skiing maneuver and to predict cross-sectional stress levels.

Finite Element Model Analysis of 3-D Angle-Interlock Woven Composite under Quasi-Static Tensile Loading

2012 ◽  
Vol 249-250 ◽  
pp. 823-827
Author(s):  
Hang Jun Hu ◽  
Li Min Jin ◽  
Bao Zhong Sun
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Static Loading ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Element Model ◽  
Woven Composite ◽  
Micro Structure ◽  
Fem Method ◽  
Static Tensile

The tensile response of three-dimensional angle-interlock woven composite (3DAWC) under quasi-static loading was investigated in experimental and finite element model (FEM) analysis. The FEM analysis was based on micro-structure at yarn level and connected with commercial FEM software ABAQUS/Explicit (ver. 6.10) to calculate the tensile property under quasi-static loading. The experimental and FEM stress-strain results were compared. Good agreement proved that the FEM method based on micro-structure was reasonable and effective and could be used to design 3-D woven structural composite.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

Reduction of Free-Edge Stress Concentration

1985 ◽  
Vol 52 (4) ◽  
pp. 801-805 ◽  
Author(s):  
P. R. Heyliger ◽  
J. N. Reddy
Keyword(s):  
Finite Element ◽  
Stress Concentration ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Free Edge ◽  
Shear Stresses ◽  
Normal Stresses ◽  
Interlaminar Shear ◽  
Three Dimensional Elasticity

A quasi-three dimensional elasticity formulation and associated finite element model for the stress analysis of symmetric laminates with free-edge cap reinforcement are described. Numerical results are presented to show the effect of the reinforcement on the reduction of free-edge stresses. It is observed that the interlaminar normal stresses are reduced considerably more than the interlaminar shear stresses due to the free-edge reinforcement.

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