Shell mesh Simulation problem

Hi,

I have a situation here. There are two situation attached.

Situation 1:

* Two surfaces seperated at 5 mm distance.

* Applied shell thickness of 2.5 mm each in opposite direction (applied top offset)

* applied bond contact

Situation 2

* Single surface

* 5mm thick

Loading and fixtures are same for both cases.

Shouldn't they have same outputs(results)?

I'm getting two different results for these cases.

Reeshi

SolidworksSimulation