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The simulation of joints in structures of sandwich panels is very important
in order to obtain values of the analytical natural frequencies and mode
shapes that are in accordance with the experimental values.
By means of a FEM program and an experimental set for modal analysis,
different assemblies of sandwich plates in aluminium, fit together with
corner joints, are tested. The FEM simulation of the corner joints is made in
different ways and the comparison between analytical and experimental results
shows that different methodologies of simulation can be applied.
Interesting results on the influence of the element set forming the joint
are obtained. Moreover the non-linear behaviour of the structures due to
the thickness of the adhesive in the joint is analysed.
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