By definition, fatigue failure is termed as the tendency of a material to fracture due to progressive brittle cracking under repeating stress which is considerably below the normal strength. Although the fracture is of brittle type, still its time of appearance will depend upon the nature of stress on the material.
Here are the 10 tips which will help prevent fatigue failure in the mechanical parts.
You need to keep in mind that any changes in the material will have its own impact on where the stress will be put while the operation of the tool made up of that material. There will be certain regions in the material where this fatigue has a high probability to occur. Hence calculation of this special area is important to take precautions.
The geometry or the shape and size of the tool or component will also have its sweet share while sketching a probability where the fatigue fracture can occur. If there is an abrupt stop in the geometry or the design then that area will certainly attract more stress. This region will then be more prone to fatigue fracture. For example, if there is a design of a keyhole. Then this particular area will be more prone to the stress fracture.
The overall design also has some serious implications for stress bearing capacity. Any imperfect design will always have areas where stress will be concentrated more. This area will then act as the beginning point for the stress fracture to occur. Therefore it is vital to have proper design to prevent fatigue failure on equipment end.