Processing math: 100%

/IMPL/RREF/OFF

Engine Keyword Deactivation reference residual option and using the previous one in stop criteria for implicit nonlinear analysis.

Format

/IMPL/RREF/OFF

Comments

  1. /IMPL/RREF becomes the default option from this version. In this case,

    Residual r = r=fext−fint−Ma

    ‖r‖ 0=max(‖fext‖,‖fint‖,‖Ma‖)

    ( a =0 for static).

    When /IMPL/RREF/OFF is used, the previous criteria is used, ‖r‖ 0=‖r‖ at the beginning of each cycle.

  2. This keyword is used only for implicit nonlinear implicit, and is generally more difficult to converge.