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Pinball Region in Pressure Mapping

Pinball Region in Pressure Mapping

Pinball Region in Pressure Mapping

(OP)
I'm modeling a turbopump system that has pressures applied to the inner surfaces of the FEM. The pressures are from an external source and I have mapped them as imported data in Workbench. I am doing a nonlinear static analysis and have the pressure being applied gradually (nothing fancy, just scaling up the imported data at given time intervals) over the first load step.

When I try to solve the model at some point during this load step I get an error saying that the "program controlled pinball grew more than 10%", and it points to the imported pressure load data as the association. From what I've read this tye of error is usually associated with contact modeling, but I do not have that included in this model. I'm wondering if in this case the model is being deformed enough that the solver is having problems mapping the pressures in subsequent substeps. Does that sound like a possibility, or is there a different underlying issue I am overlooking?

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