Learning Forum

[eLeN_93]

I am trying to model a stress analysis on a one-supported cantilever beam (50x50 um^2 and thickness 200nm) that after the load is applied, comes in contact with the substrate creating an s-shape deformation. I have created my geometry and my model properly and I managed to create the load as well in order to have this shape by adding a variable load that follows a deflection function. My issue is that, although I define my fixed supports and my contacts in the model, after the analysis the cantilever ''ignores'' the contact constraint and penetrates the substrate. I have tried all the different types of contacts and that is the case. I also found in some supporting forums online that you can increase the stiffness of the substrate to avoid that, but still. Does anyone know how can I fix that? 

Thank you in advance

[peteroznewman]

Insert a Contact Tool under the Connections folder and Generate Initial Contact Status.  Look to see if the Frictional Contact is Closed, Near Open or Open. 

If it is Open, that contact will be ignored during the solution so increase the Pinball Radius to make the contact Near Open.