RobertCasey
Mechanical
We are a Dutch company designing spindles and shafts for various purposes (wheel supports, rotating connections etc) and have for many years used an old German textbook called Hanchen to determine safety factors and allowable fatigue stress levels. This document gave methods of calculating safety factors at the various sections of the spindle based on the magnitude and direction of fatigue stresses in that area, shoulder radii or stress concentration, diameter of section, and surface finish. The problem is that this text is very out of date and no longer published, and we need to find new design guidance. I know of British Standard 2573-2 which gives the sort of information we are looking for, but this Standard is itself over 20 years old and whilst it is useful, I was wondering if there were more modern European Standards or literature. For the US based engineers reading this, can you tell me which codes or guidance they would typically use in the design of these types of components specifically for ascertaining fatigue life. Thanks.
