Reply To: Honeycomb Shear modulus Calculation based on Analysis – ASTM 273

[peteroznewman]

Honeycomb core is made by bonding sheets of foil and expanding them.

Another source of error is the presence of an adhesive material between the foil sheets which has a much lower modulus than aluminum.

Your model uses bonded contact to connect the foil sheets to make the 2t thickness instead of adhesive, so your model has a higher modulus than the physical product.