Document Type

Article

Publication Date

12-2016

Publisher

American Society of Civil Engineers (ASCE)

Source Publication

Journal of Transportation Engineering

Source ISSN

0733-947X

Original Item ID

DOI: 10.1061/(ASCE)TE.1943-5436.0000893

Abstract

The finite-element method was used to quantify the effect of temperature and speed on contact area, deflection, and three-dimensional contact stresses of a free-rolling wide-base tire. The tire model comprised material properties identified in the laboratory and/or provided by the tire manufacturer (hyperviscoelastic rubber and linear elastic reinforcement) and accurate geometry. The model was validated using measured deflection and contact area. The analysis matrix consisted of 81 cases resulting from a combination of three loads, tire-inflation pressures, speeds, and temperatures. Four criteria were used to compare contact stresses: range, average, root-mean-square error, and coefficient of determination. Speed and temperature influence the contact area more than deflection. Longitudinal contact stresses were the most affected, followed by transverse contact stresses. In general, under constant load and tire-inflation pressure, the influence of temperature was more significant on the considered output variables than the effect of speed.

Comments

Accepted version. Journal of Transportation Engineering, Vol. 142, No. 12 (December 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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