1) Rigid body displacements and elementary loads

Only to show that the algorithm can capture rigid body motions, which is of major importance [1], Fig. 1 and 2 are presented as an example for a translatory and a rotatory motion.

Translation, 17k to load enlargement Rotation, 10k to load enlargement
Figure 1: Translation Figure 2: Rotation

The displacements are imposed on either one or two boundaries with all other boundaries defined as force-boundaries without any load such that no displacements are prevented. Thus given displacements have to spread over the whole domain without any resulting forces.

References

[1] Knothe, K; Wessels, H.:  Finite Elemente, Springer Verlag 1992, Berlin, Heidelberg, New York

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