Document Type

Article

Publication Date

2-2016

Publisher

American Society of Civil Engineers (ASCE)

Source Publication

Journal of Engineering Mechanics

Source ISSN

0733-9399

Original Item ID

DOI: 10.1061/(ASCE)EM.1943-7889.0001007

Abstract

Description of tire model development using the finite element (FE) method is presented. Three-dimensional tire-pavement contact stresses were predicted for braking, traction, and free rolling using the FE method. Measured load-deflection curves, contact area, and contact stresses were used for model outcome validation. Slide-velocity-dependent friction and accurate input regarding geometry and material properties were considered. The developed tire model, which helped in studying contact stresses variation in each direction, was used to explain the various phenomena taking place at the tire-pavement interface during straight-line rolling. The analysis matrix includes nine rolling conditions and various loads, tire inflation pressures, and speeds. Vertical contact stresses were not significantly affected by speed or slip ratio; however, contact stresses were greatly modified along the in-plane directions by rolling conditions. Analytical expressions were introduced to represent vertical and longitudinal contact stresses for full braking and full traction. Formulas are presented for low speed and full braking, which are relevant for roadway intersections design.

Comments

Accepted version. Journal of Engineering Mechanics, Vol. 142, No. 2 (February 2016). DOI. © 2016 American Society of Civil Engineers (ASCE). Used with permission.

Jaime A. Hernandez was affiliated with University of Illinois at Urbana–Champaign at the time of publication.

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