40.3.2 Tube-to-tube contact element library
Product: Abaqus/Standard
Overview
This section provides a reference to the tube-to-tube contact elements available in Abaqus/Standard.
Element types
| ITT21 | Tube-to-tube element for use with two-dimensional beam and pipe elements |
| ITT31 | Tube-to-tube element for use with three-dimensional beam and pipe elements |
Element property definition
| Input File Usage: | Use the following option to identify the second (outer) pipe with which the specified ITT contact elements on the first (inner) pipe can interact: |
*SLIDE LINE Use the following option to give the radial clearance between the pipes as a positive number when modeling a tube sliding within another tube: *INTERFACE When the elements are modeling contact between the exterior surfaces of two pipes, the sum of the external radii of the pipes is given as a negative number. |
Element output
Stress components
S11 | Normal component of the force between the two pipes. |
S12 | Shear force between the two pipes, parallel to the axis of the second (outer) pipe. |
S13 | Shear force between the two pipes, normal to the contact direction and to the axis of the second (outer) pipe (for ITT31 only). |
Strain components
E11 | Overclosure of the surfaces in the direction normal to the tangent to the centerline of the second (outer) pipe. |
E12 | Accumulated relative tangential motion between the two pipes, parallel to the axis of the second (outer) pipe. |
E13 | Accumulated relative tangential motion between the two pipes, normal to the contact direction and to the axis of the second (outer) pipe (for ITT31 only). |
