General Mechanical

General Mechanical

Mixed Method – ANSYS – How is an element defined?

    • r.v.conte

      I would like to understand how the mixed u-p formulation in the ANSYS works. For PLANE183 element in the ANSYS's manual we can find that:


      There is a linear function for hydrostatic pressure interpolation P=P1+sP2+tP3   but in the table we can read that there are just two internal nodes for pressure. I do not understand this. I would be grateful if someone explained it to me. The element does not match to any element described in the book (Zienkiewicz,Taylor - The Finite Element Method vol.1)

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