Typically, the stress-strain response in filled rubbers depends strongly on the maximum loading previously encountered. The phenomenon, known as the Mullins effect, can be idealized for many purposes as an instantaneous and irreversible softening of the stress-strain curve that occurs whenever the load increases beyond its prior all-time maximum value. At times when the load is less than a prior maximum, nonlinear elastic behaviour prevails. Ogden and Roxburgh proposed an empirical model capable of describing this phenomenon, based on a pseudo-elastic concept. Their model, with minor adaptations, has recently been implemented in a commercial finite element program. This paper demonstrates the effectiveness of the implemented model for several benchmark cases including uniform hydrostatic loading, simple tension, pure shear, and equibiaxial tension. The paper also compares model predictions with experimental results for a series of experiments conducted with various combinations of axial tension/compression and torsion loading.


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    Title :

    Evaluation of a pseudo-elastic model for the Mullins effect


    Additional title:

    Bewertung eines pseudo-elastischen Modells für den Mullins-Effekt


    Contributors:
    Mars, W.V. (author)


    Publication date :

    2004


    Size :

    26 Seiten, 25 Bilder, 7 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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