Crankshaft Stress
Concentrations
sent by Laura Peleh,
Engine Systems Technologies &
Solutions, Caterpillar
flexure
The bending set shows how the stress is concentrated at the inside fillet, and then the photo shows the fracture.
torsion
The torsion set shows the stress concentration (old and new designs) at the machined oil holes, and the photo shows the angled crack propagating from one of the holes.