Axisymmetric rigid surface contact element library | |||||||||
|
| ||||||||
ProductsAbaqus/Standard
Element types
- IRS21A
Axisymmetric rigid surface contact element for use with first-order axisymmetric elements
- IRS22A
Axisymmetric rigid surface contact element for use with second-order axisymmetric elements
Active degrees of freedom
1, 2 at each node except the last node
1, 2, 6, the motion of the rigid body reference node, at the last node
Additional solution variables
Two additional variables at each node relating to the contact stresses.
Nodal coordinates required
r, z
Element property definition
Input File Usage
Use the following option to define the surface with which the elements interact:
RIGID SURFACE
Use the following option to define the rigid surface element's section properties:
INTERFACE
Element-based loading
None.
Element output
- S11
Pressure between the element and the rigid surface in the direction of the normal to the rigid surface.
- S12
Shear component of the stress between the element and the rigid surface in the direction of the tangent to the rigid surface.
- E11
Separation of the surfaces in the direction of the normal to the rigid surface at the closest point of the surface to the integration point on the element.
- E12
Accumulated relative tangential displacement of the surfaces.
Node ordering on elements
The first two nodes in IRS21A and the first three nodes in IRS22A are on the deforming mesh. The last node is the rigid body reference node that defines the motion of the rigid body.
Numbering of integration points for output
The integration points are located at the nodes that lie on the surface of the deforming model and are numbered correspondingly.