From the main menu bar, select
.
A Create Section dialog box appears.
Enter a section name. For more information on naming objects, see
Using basic dialog box components.
Select Other as the section
Category and Acoustic infinite as the
section Type, and click Continue.
The section editor appears.
Select an acoustic medium material for the acoustic infinite section.
If desired, click
to create a material; see
Creating or editing a material,
for more information.
Enter a value for the section Plane stress/strain
thickness. If the section will be used with a two-dimensional
region, you must specify the section thickness.
Abaqus/CAE
ignores the thickness information if it is not needed for the region type.
To define the number of ninth-order polynomials that will be used to
resolve the variation of the acoustic field in the infinite direction, click
the arrow to the right of the Order field to decrease the
number of polynomials that will be used (applies only to
Abaqus/Explicit
analyses). The default value is 10, which is the value always used in
Abaqus/Standard.
Click OK to save your changes and to close the
section editor.