Modelling of Bending a Flat Sheet

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I am trying to deform a flat sheet into a semi conical shape. I want to study the stress in the flat sheet as it undergoes deformation into a conical shape ( similar to a piece of paper wrapped around a cone ).

I tried using Solid Mechanics and have created a conical structure ( material : steel ) and rectangular sheet ( material : Al ). The bottom of sheet and cone have been fixed and i am applying a force of 10^9N in Y-direction.

However, I only get a very small displacement of the sheet. Can someone guide me what is going wrong here? My aim is to wrap this sheet around the conical surface.



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