To perform a tire fracture mechanics analysis, an explicit crack should be included in a tire model. The initial crack is assumed to be located in the critical region identified, and to orient in a predetermined direction. The crack is assumed to be of the shape of a closed ribbon with the size (in a tire cross section) of a certain characteristic length determined from geometrical features of the critical region. This assumption is realistic unless tire noninfirmities are of concern. A three-dimensional fracture mechanics model is formulated to study fatigue crack growth and durability in tires. Using this model, a comprehensive study of the fracture mechanics analysis of a RMT (radial medium truck) tire with a belt edge crack is conducted. Only straight rolling tire subject to vertical load are considered. The fracture mode can be determined from the calculation of the energy release rate which be decomposed into components in three orthogonal directions per the VCCT (virtual crack closure) technique. The application of this model in a radial medium truck tire reveals fracture characteristics of belt edge cracks and helps to explain mechanical and material changes in the tire subject to indoor accelerated durability tests. Along with a proprietary fatigue crack growth law, a fracture mechanics based durability analysis methodology is developed and successfully applied to rank durability of tires with different constructions or different rubber materials. It should be noted, however, that a full tire cross-section model has to be utilized if a more complex load is applied on the tire, e.g., vertical and lateral load.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Computational fracture mechanics analysis of truck tire durability


    Additional title:

    Bruchmechanische Analyse der Lebensdauer eines Lkw-Reifens


    Contributors:


    Publication date :

    2006


    Size :

    8 Seiten, 13 Bilder, 1 Tabelle, 15 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Inelastic Fracture Mechanics for Tire Durability Simulations

    Kaliske, Michael | Online Contents | 2007


    All-steel truck radial tire with high tire bead durability

    FEI XIANGUI / YU CEN / MENG LEI et al. | European Patent Office | 2024

    Free access

    TRUCK TIRE TREAD AND TRUCK TIRE

    ZHU FANG / WALLACE TERENCE / VOSS STEFAN et al. | European Patent Office | 2020

    Free access

    Truck tire tread and truck tire

    ZHU FANG / WALLACE TERENCE | European Patent Office | 2018

    Free access

    TRUCK TIRE TREAD AND TRUCK TIRE

    ZHU FANG / WALLACE TERENCE / VOSS STEFAN et al. | European Patent Office | 2017

    Free access