Corrosion Fatigue 1

A failure of a pump or agitator shaft can be an expensive item because of other consequential damage. Corrosion fatigue is something which can particularly affect rotating components, such as pump or agitator shafts, which are operating in corrosive media. Although it has been known for a long time that sharp steps in shafts can act as stress raisers, this is not always properly accounted for in designs. The local stress intensification factor can be high if the step is very sharp. If a radiused change of diameter is introduced, the local stress can be lowered and the greater the radius of curvature, the lower the local stress during operation.

Posted on: 7th April 2016

< NewerArchiveOlder >

Image (top left) by Agnieszka