26.8.2 Hydrostatic fluid element library

Products: ABAQUS/Standard ABAQUS/Explicit

References

Element types

2-D element

F2D2 2-node linear

Active degrees of freedom

1, 2 at the nodes on the cavity boundary

8 (fluid pressure) at the cavity reference node

Additional solution variables

None.

3-D elements

F3D3 3-node linear
F3D4 4-node linear

Active degrees of freedom

1, 2, 3 at the nodes on the cavity boundary

8 (fluid pressure) at the cavity reference node

Additional solution variables

None.

Axisymmetric element

FAX2 2-node linear

Active degrees of freedom

1, 2 at the nodes on the cavity boundary

8 (fluid pressure) at the cavity reference node

Additional solution variables

None.

Nodal coordinates required

2-D: X, Y

3-D: X, Y, Z

Axisymmetric: r, z

Element property definition

For two-dimensional elements you must provide the out-of-plane thickness of the element; by default, unit thickness is assumed.

For three-dimensional and axisymmetric elements no additional data are required.

Input File Usage:

*FLUID PROPERTY

Element-based loading

None.

To add fluid to or remove fluid from the cavity, apply a fluid flux at the cavity reference node; see “Modeling fluid-filled cavities,” Section 11.5.1.

Element output

None.