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The mesh refinement was carried our for the Candidate A case from the second optimization. That is the radius of the hole was set to 1.4725 inches.

Element Size (In)

Number of Elements

Equivalent Von Mises Stress (PSI)

1

239

32,480

0.5

536

32,718

0.25

1,840

32,695

Optimization Methods

The optimization was carried using each of the four optimization methods offered in ANSYS workbench. Note that the default optimization method in ANSYS is Screening.

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