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The purpose of this tutorial is to showcase perhaps the simplest stress concentration and point out that it can be resolved in 2 or 3 dimensions. Simple one-dimensional elements (i.e. simple axial bar elements) that capture constant stress within an element are insufficient to capture stress concentrations, even when many elements are used. That is to say, when the necessary physics is not contained in the element formulation, so-called h-convergence or using more elements capture "no more" of the solution than does a coars(er) discretization. This tutorial is meant to highlight where it is relatively straightforward to apply FEA and resolve a solution correctly that belies analytical treatment with uniaxial formulae (such as axial_stress = P/A).

Continue to Step 1 - Pre-Analysis and Start-Up

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