ECPRES
| (Object data – 3D) |
|---|
| Last updated on : 13-08-2013 |
ECPRES Object, Ndata, DefPressure
- Num(1), node1(i) node2(i) node3(1) node4(1) NorPressure(1)
-
: :
Num(Ndata), node1(NData) node2(NData) node3(Ndata) node4(Ndata) NorPressure(NData)
| OPERAND | DESCRIPTION | DEFAULT |
|---|---|---|
| Object | Object number | None |
| Ndata | Number of face/constraint data sets | None |
| DefPressure | Default value of normal pressure of all faces not listed in the face constraint data sets with deformation boundary constraint code 2 | |
| Num(i) | face number | None |
| node1(i) | 1st node defining face i | |
| node2(i) | 2nd node defining face i | |
| node3(i) | 3rd node defining face i | |
| node4(i) | 4th node defining face i | |
| NorPressure | Normal Pressure | None |
DEFINITION
ECPRES maintains a specified normal pressure across the face of the elements lying on the selected face. Note that tangential pressures are no longer supported in this definition.
REMARKS
Pressure is defined as force per unit area. The pressure is assumed to be linear between adjacent faces. The pressure constraint will be applied to the element faces lying between the selected boundary nodes. The pressure direction may be specified as normal. Positive normal pressure applies tension to the element faces. If no value is specified for DefPressure, it is assumed to be zero. Nodal pressure may be specified as a function of time with keyword ECDEFN.
RELATED TOPICS
Object Edge data: Deformation, Boundary Constraints: Deformation -Pressure Keywords: ECDEFN (2D), ECDEFN (3D), ECCDEF (2D), ECCDEF (3D), LOCDEF (2D), LOCDEF (3D)