PENINF
| (Simulation control) |
|---|
| Last updated on : 08-08-2013 |
PENINF Penalty
| OPERAND | DESCRIPTION | DEFAULT |
|---|---|---|
| Penalty | Interface penalty constant | 1.0E+09 |
DEFINITION
PENINF is a large positive constant used to penalize the penetration velocity when a boundary node of one object comes into contact with another object [2].
REMARKS
PENINF is needed to numerically model physical contact between deforming objects. When a slave and master object come into contact, there is a tendency for nodes from the slave object to penetrate the surface of the master object. PENINF reduces the penetration depth by reducing the penetration velocity [2]. velocitypen = contact pressure/Penalty It is recommended that the interface penalty constant be at least 1000 times the volume penalty constant, PENVOL. Generally the default value of Penalty is satisfactory. Applicable simulation types: Isothermal Deformation Non-Isothermal Deformation
RELATED TOPICS
Node penetration, Inter-object contact Keywords: PENVOL (2D), PENVOL (3D)