Title

Fatigue Damage Investigation of Ultra-Large Tire Components

Abstract

Off-road ultra-large tires experience different modes of heat-related fatigue failure in operation due to inherent material defects that grow into visible cracks under service loads. This study implements the cracking energy density theory to predict nucleation life of selected components of a 56/80R63 tire. The method uses an assumed intrinsic flaw, a fatigue crack growth law, and a rubber constitutive law to compute local crack driving forces from strain history loads obtained via FEA. The results show that the lower sidewall, belt endings, and inner tread lug corners are the critical regions for crack initiation with lives 5.03 x 105, 1.207 x 105, and 2.01 x 104 cycles, respectively.

Department(s)

Mining and Nuclear Engineering

Comments

The authors acknowledge the financial support from the Department of Mining and Nuclear Engineering at Missouri University of Science and Technology through the SMP project.

Keywords and Phrases

Cracking energy density; Fatigue crack growth; Finite element analysis; Strain-induced crystallization; Tire

International Standard Serial Number (ISSN)

0142-1123

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Elsevier Ltd, All rights reserved.

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