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*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.

Products: Abaqus/Standard  Abaqus/CAE  

Type: Model data

Level: Model  

Abaqus/CAE: Interaction module

Reference:

Required parameter:

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 18.60–1):

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

  2. Name of master surface or surface corresponding to a subregion of the master surface. The name can be omitted when smoothing is applied only to a subregion of the slave 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 18.60–1 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 18.60–2):

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

  2. Name of master surface or surface corresponding to a subregion of the master surface. The name can be omitted when smoothing is applied only to a subregion of the slave 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 18.60–2).

  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 18.60–2 Three-dimensional circumferential smoothing.

Data line to define smoothing on regions of surfaces that correspond (or nearly correspond) to a sphere section (see Figure 18.60–3):

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

  2. Name of master surface or surface corresponding to a subregion of the master surface. The name can be omitted when smoothing is applied only to a subregion of the slave 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 18.60–3 Spherical smoothing.

Data line to define smoothing on regions of surfaces that correspond (or nearly correspond) to a toroidal surface (see Figure 18.60–4):

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

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

  3. The “word” TOROIDAL.

  4. Global X-coordinate of point a on the approximate axis of revolution for the surface (see Figure 18.60–4).

  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 18.60–4).

  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 18.60–4).

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

Figure 18.60–4 Three-dimensional toroidal smoothing.