In the case of a funnel-shaped component, you can use, for example, a polygonal contact solid layout (A), but this would result in the incorrect secondary effect of stress peaks at corner points. When modeling using members (B), these should be arranged at each FE mesh point, and the cross‑section should correspond approximately to the FE mesh width. You can implement the failure criterion by member type (for example, compression member) or by means of nonlinear member releases.
Contact Problem at Funnel-Shaped Component
Contact solids can be created between two flat surfaces or between two cylindrical shells. However, if the area of the contact problem is a little more complicated, it is necessary either to simplify the system so that the requirements of a contact solid can be met, or to go back to the "old" modeling style using a rod model.
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Mr. Fröhlich provides technical support to our customers and is responsible for development in the area of reinforced concrete structures.
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