/DTSDE

Engine Keyword Larger time step calculation method for solid 6-node pentahedronelement.

Format

/DTSDE

Comments

  1. The time step for solid 6-node pentahedronelements will be approximately 2 times higher than the default time step calculation.
  2. This option applies to degenerated solid 6-node pentahedronelements and /PENTA6 thick shell pentahedronelements.
  3. With this option, the critical length (Lc) is the minimum height of the triangle facets.
  4. This option was enabled by default in versions 13.0 through 2019.1 when the input deck format defined by /VERS is greater than 120. Starting in 2019.2, this option is not used, and the smaller more stable time step is now used. Small changes in the results are expected with constant nodal time step (/DT/NODA/CST).