Ball mesh from modal analysis showing
5th eigenmode. Strain ZX shown in color.
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Patch test showing displacement Z in color
and fixed displacements on all boundary nodes.
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Ring mesh showing wire frame of deformed and
undeformed meshes for 4th eigenmode.
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Torsion mesh showing strain ZX. The load
is big enough to cause non-linear deformation. I include it so you
can compare it to the results of the non-linear
problem.
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Impossible triangle mesh created by
Julian Holt .
He and I are both big fans of
Escher.
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