I got to read an interesting root cause analysis to find the reason for a premature gear tooth tip failure. This article by Eric Olson and Chris Hurrel is elaborate, easy to understand and technically invigorating. Please click on the link to read the article in full.
At times, some of the sites do shift the files and folders and the article may not be directly accessible. In such a case, copy and paste the title of the article in the search window available in the site. The title of this article is, “Extracting the root of a puzzling gear tooth failure”