This test case is taken from the OpenFOAM stress analysis tutorial: https://www.openfoam.com/documentation/tutorial-guide/tutorialse9.php

Parameter	Value
Young's Modulus	200 GPa
Poisson's ratio	0.3

Plane stress conditions applied

Symmetry conditions are applied so that only the top right quadrant is modeled.

A uniform traction of 10 kPa is applied to the right edge.

Symmetry conditions are applied to the right and bottom edges.

The normal stress along the vertical line of symmetry is given by

Note that the resulting stress distribution is independent of the mechanical properties of the model.