*SURFACE SMOOTHING

Define surface smoothing methods.

This option is used to create a surface smoothing definition for contact interactions. It must be used in conjunction with the CONTACT PAIR option. The defined smoothing methods apply to the specified regions of the surfaces in the referenced contact pair.

This page discusses:

See Also
In Other Guides
Smoothing Contact Surfaces in Abaqus/Standard

ProductsAbaqus/StandardAbaqus/CAE

TypeModel data

LevelModel

Abaqus/CAEInteraction module

Required parameters

NAME

Set this parameter equal to a label that will be used to refer to this surface smoothing definition.

This label is referred to by the GEOMETRIC CORRECTION parameter on the CONTACT PAIR option.

Data lines to define the surface regions on which smoothing is applied

Data line to define smoothing on regions of two-dimensional surfaces that correspond (or nearly correspond) to a circular arc (see Figure 1)

  1. Name of secondary surface or surface corresponding to a subregion of the secondary surface. The name can be omitted when smoothing is applied only to a subregion of the main surface.

  2. Name of main surface or surface corresponding to a subregion of the main surface. The name can be omitted when smoothing is applied only to a subregion of the secondary surface.

  3. The word CIRCUMFERENTIAL.

  4. Global X-coordinate of point a, the approximate center (origin) of the circular arc.

  5. Global Y-coordinate of point a, the approximate center (origin) of the circular arc.

    Figure 1. Two-dimensional circumferential smoothing.

Data line to define smoothing on regions of surfaces that correspond (or nearly correspond) to a surface of revolution (see Figure 2)

  1. Name of secondary surface or surface corresponding to a subregion of the secondary surface. The name can be omitted when smoothing is applied only to a subregion of the main surface.

  2. Name of main surface or surface corresponding to a subregion of the main surface. The name can be omitted when smoothing is applied only to a subregion of the secondary surface.

  3. The word CIRCUMFERENTIAL.

  4. Global X-coordinate of point a on the approximate axis of revolution for the surface.

  5. Global Y-coordinate of point a on the approximate axis of revolution for the surface.

  6. Global Z-coordinate of point a on the approximate axis of revolution for the surface.

  7. Global X-coordinate of point b on the approximate axis of revolution for the surface (see Figure 2).

  8. Global Y-coordinate of point b on the approximate axis of revolution for the surface.

  9. Global Z-coordinate of point b on the approximate axis of revolution for the surface.

Figure 2. Three-dimensional circumferential smoothing.

Data line to define smoothing on regions of surfaces that correspond (or nearly correspond) to a sphere section (see Figure 3)

  1. Name of secondary surface or surface corresponding to a subregion of the secondary surface. The name can be omitted when smoothing is applied only to a subregion of the main surface.

  2. Name of main surface or surface corresponding to a subregion of the main surface. The name can be omitted when smoothing is applied only to a subregion of the secondary surface.

  3. The word SPHERICAL.

  4. Global X-coordinate of point a, the approximate center (origin) of the sphere.

  5. Global Y-coordinate of point a, the approximate center (origin) of the sphere.

  6. Global Z-coordinate of point a, the approximate center (origin) of the sphere.

Figure 3. Spherical smoothing.

Data line to define smoothing on regions of surfaces that correspond (or nearly correspond) to a toroidal surface (see Figure 4)

  1. Name of secondary surface or surface corresponding to a subregion of the secondary surface. The name can be omitted when smoothing is applied only to a subregion of the main surface.

  2. Name of main surface or surface corresponding to a subregion of the main surface. The name can be omitted when smoothing is applied only to a subregion of the secondary surface.

  3. The word TOROIDAL.

  4. Global X-coordinate of point a on the approximate axis of revolution for the surface (see Figure 4).

  5. Global Y-coordinate of point a on the approximate axis of revolution for the surface.

  6. Global Z-coordinate of point a on the approximate axis of revolution for the surface.

  7. Global X-coordinate of point b on the approximate axis of revolution for the surface (see Figure 4).

  8. Global Y-coordinate of point b on the approximate axis of revolution for the surface.

  9. Global Z-coordinate of point b on the approximate axis of revolution for the surface.

  10. Distance R of the center of the circular arc from the axis of revolution (see Figure 4).

Repeat the above data lines as often as necessary to define all surface regions that require smoothing.

Figure 4. Three-dimensional toroidal smoothing.