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Our solution
When sandwich panels carry a large load, or are highly
stressed, our consultants would normally conduct a laminate
stack analysis. This checks that none of the laminae is
overloaded, that they will not delaminate and that the
core is not overloaded by its shear stress. In this case,
the mechanical panels were not that highly loaded. Our
consultants built an FEA model of
each panel, using solid elements for the core and shell
elements for the skin. Although numerically bonded together,
we could display the stresses separately in the cores
and skins. Our consultants used the FEA
models to design the core and laminate thicknesses.
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