Helpful Hints and Tips: Case Study on the Influence of Element Mapping and p-Discretization
In this case study, a 3D tie rod under bearing loads was analyzed (CAD courtesy of Digital Engineering). The influences of 1) converting element mapping from isoparametric/quadratic to geometric and/or 2) assigning p-discretization on the peak stress and solver time was documented. Element mapping was considered both on all elements and a subset in the region of interest, and p-discretization was considered on elements outside the region of interest to reduce solver time.
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“We have been having very good success using the P-Version finite element code, StressCheck®, to develop the 2-D solutions for two independent cracks in a plate. I have asked one of our AFGROW team members to model the plate and lug cases using StressCheck® and compare them to the existing AFGROW closed-form solutions. [He] modeled the cases several different ways to be sure that he was getting the best possible solutions. He has verified that the bearing load option in StressCheck® provides excellent results.”