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Hyperelastic material (rubber) modelisation

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  • Hyperelastic material (rubber) modelisation

    Hi everyone !

    Im performing modelisation contact between two bodies (Baloon and pipe) with Abaqus software, please see the descriptif figure attached !!
    I'v made two steps : the first one is applying pressure on internal surface of the baloon and the second step if for displacement of the baloon along the tube !
    I've choosed Money-Rivlin model with two parameters
    for the contact i've choosed Frictional with 0.5 !!
    At the moment i've fixed all converging problems for the first step but i have always converging problems for the second step under this error message 'Time increment required is less than the minimum specified'.

    How can I overcome this problem