ABAQUS Volume II: I–Z - Manual (Page 248)

*PERIODIC
is assumed to apply both in the positive and negative directions of the distance vector. The default
value is NR=2.
Data line to define periodic symmetry of a two-dimensional cavity (TYPE=2D):
First (and only) line:
1. x-coordinate of point a (see Figure 16.5–1).
2. y-coordinate of point a.
3. x-coordinate of point b.
4. y-coordinate of point b.
5. x-component of periodic distance vector.
6. y-component of periodic distance vector.
Data lines to define periodic symmetry of a three-dimensional cavity (TYPE=3D):
First line:
1. x-coordinate of point a (see Figure 16.5–2).
2. y-coordinate of point a.
3. z-coordinate of point a.
4. x-coordinate of point b.
5. y-coordinate of point b.
6. z-coordinate of point b.
Second line:
1. x-coordinate of point c.
2. y-coordinate of point c.
3. z-coordinate of point c.
4. x-component of periodic distance vector.
5. y-component of periodic distance vector.
6. z-component of periodic distance vector.
Data line to define periodic symmetry of an axisymmetric cavity (TYPE=ZDIR):
First (and only) line:
1. z-coordinate of periodic symmetry reference line (see Figure 16.5–3).
2. z-component of periodic distance vector.
16.5–2
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