ABAQUS Volume II: I–Z - Manual (Page 223)

*ORIENTATION
15.1 *ORIENTATION: Define a local axis system for material or element property
definition, for kinematic coupling constraints, for free directions for inertia relief
loads, or for connectors.
This option is used to define a local coordinate system for definition of material properties; for material
calculations at integration points; for element property definitions (e.g., connector elements); for output
of components of stress, strain, and element section forces; and for kinematic and distributing coupling
constraints. In ABAQUS/Standard it can be used to define local directions for contact pair interaction
properties and spring, dashpot, and JOINTC elements; for definition of local free directions for inertia relief
loads; and for output of components of surface variables.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Part, Part instance, Assembly
References:
•
“Orientations,” Section 2.2.5 of the ABAQUS Analysis User’s Manual
•
“ORIENT,” Section 1.1.14 of the ABAQUS User Subroutines Reference Manual
Required parameter:
NAME
Set this parameter equal to a label that will be used to refer to the orientation definition. Orientation
names in the same input file must be unique.
Optional parameters:
DEFINITION
Set DEFINITION =COORDINATES (default) to define the local system by giving the coordinates
of the three points a, b, and, optionally, c (the origin) appropriate to the SYSTEM choice from
Figure 15.1–1.
Set DEFINITION=NODES to define the local system by giving global node numbers for points
a, b, and, optionally, c (the origin).
Set DEFINITION=OFFSET TO NODES to define the local system by giving local node
numbers (on the element where the orientation is being used) to define the points a, b, and,
optionally, c (the origin) in Figure 15.1–1. This parameter value cannot be used with spring,
dashpot, or JOINTC elements. In addition, it cannot be used with the *KINEMATIC COUPLING,
*INERTIA RELIEF, or *CONTACT PAIR options.
15.1–1
ABAQUS Version 6.1 Module: ID:
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