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  • Documentation

    Which Surface Should I Select as the Master in a Contact Pair?


    Successful structural analysis involving multiple bodies requires accurate contact definition, this means selecting appropriate master and slave surfaces for each contact. How can I be sure that I am making the best choice?


    There are a few key points to remember when selecting the surfaces that make up a contact pair. They are as follows,

    • The slave surface should have the finer mesh grid spacing
    • The slave surface should ideally fit within the master surface outline
    • The slave surface should have the more complex curvature. For physical contacts the expected curvature (deformation) should also be considered, meaning that the surface belonging to the softer material should be the slave as its deformation will be greater.

    Important Information

    If none of the above suggestions did solve your problem, then please post the issue on our forum or contact us.

    Last updated: October 22nd, 2020