Stresses, Tribology and Contact Mechanics

When two objects come into contact, depending on the shape of the surfaces, there may be point or line contact. The contact force causes deformation and thus stresses in the material. If these material stresses are high, the material may fail. The material stresses in...

Rolling Contact Fatigue

Up to and including HertzWin 3.2.0, all calculated results are for a static situation. The most important material stresses for a static situation are the maximum shear stress and the von Mises equivalent stress. The Von Mises equivalent stress is most often used to...

Refined, Advanced Tolerance Analysis

In previous articles about tolerance analysis, I discussed the step-by-step plan and how to add up tolerances. The sum of tolerances can be a worst-case sum or a statistical sum. In ‘The Distribution of Tolerances’ I also discussed the types of...