Hourglass
Hourglass entities define hourglass and bulk viscosity properties which are referenced via HGID in the *PART command.
LS-DYNA Cards
| Card | Description |
|---|---|
| *HOURGLS | Define hourglass and bulk viscosity properties which are referenced via HGID in the *PART command |
OptiStruct Cards
Defines hourglass control parameters to reduce spurious zero-energy modes in elements with reduced integration.