| Description | Type | Default |
|---|---|---|
|
Foam core composite sandwich stability allowable coefficient. The face sheet wrinkling allowable for a foam core sandwich is given by:
where
See the Autodesk Nastran User’s Manual, Section 21.4, Composites, for more information. |
Real |
AUTO |
is given by COMPK1 and is defaulted to 0.76 for thick cores and 0.63 for thin cores,
is Young’s Modulus for the facesheet,
is Young’s Modulus for the core, and
is the transverse shear modulus for the core.