/IMPL/RREF/INTERF/n
Engine Keyword Different reference force residual computations used for stop criteria on nonlinear analysis with contact.
Format
/IMPL/RREF/INTERF/N
Definitions
Data | Description | SI Unit Example |
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N |
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Comments
- An appropriate reference value in contact analysis is delicate to compute (especially in simulations involving rigid parts with imposed displacement impacting a deformable part). Radioss makes an exception by modifying the reference value (generally at iteration number one). A large reference value has been received in some cases, resulting in a wrong convergence; in other cases, a very small reference value results in failure of the convergence. This new keyword directs you to the appropriate choice for their simulations.