A finite element modelling methodology capable of predicting the transient behaviour inside of a rolling car tire is presented. Although the approach has been specifically developed using the explicit finite element code LS-DYNA, it will be suitable for other commercial codes. Attention is given to the role played in the model development by the computational resource, the mesh requirements, the constitutive material relationships, and the contact and friction phenomena. Two different radial tire models are described based on analysis of an experimental car tire from Dunlop Tyres Ltd., UK. This paper addresses the challenges for the development of two FE models to simulate static and rolling tire behaviour. The authors identify the modelling choices that will need to be considered by any FE analyst undertaking similar tire work. FE results are presented together with physical test data for an experimental tire under normal laboratory ambient conditions. Correlation is good for the stationary tire and this shows that the modelling methodology is appropriate for global behaviour. Despite the comparison not being as good for the rolling tire, there is evidence to conclude that the relative transient behaviour at the macroscopic level is what is wanted. Differences between FE predictions and physical measurements for the size, shape and stress distributions of the contact patch for the rolling tire appear to be due to the performance of the contact algorithm. The rational and sensible modelling methodology for tire analysis using LSDYNA will provide guidance when developing similar tire models. By having knowledge of which specific options (and their input parameters) are suitable with the LS-DYNA code, the analyst can make an informed decision to use a similar choice when using LS-DYNA or a different FE code. In particular, further work is required to understand why the contact patch size, shape and stress distributions are always different to those predicted by the FE models.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Tire modeling methodology with the explicit finite element code LS-DYNA


    Additional title:

    Reifenmodellierungsverfahren mit dem expliziten FE-Code LS-DYNA


    Contributors:
    Hall, W. (author) / Mottram, J.T. (author) / Jones, R.P. (author)


    Publication date :

    2004


    Size :

    26 Seiten, 11 Bilder, 3 Tabellen, 41 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English








    Finite Element Modeling of Composite Tubular Crash Structures With an Explicit Code

    Fox, B. / Society of Automotive Engineers | British Library Conference Proceedings | 2006